<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//TaxonX//DTD Taxonomic Treatment Publishing DTD v0 20100105//EN" "https://rujec.org/nlm/tax-treatment-NS0.dtd">
<article xmlns:tp="http://www.plazi.org/taxpub" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" article-type="research-article" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">77</journal-id>
      <journal-id journal-id-type="index">urn:lsid:arphahub.com:pub:0CE58996-512E-521C-907F-C2C6EA147B5F</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Russian Journal of Economics</journal-title>
        <abbrev-journal-title xml:lang="en">RUJEC</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">2618-7213</issn>
      <issn pub-type="epub">2405-4739</issn>
      <publisher>
        <publisher-name>Non-profit partnership "Voprosy Ekonomiki"</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.32609/j.ruje.12.168448</article-id>
      <article-id pub-id-type="publisher-id">168448</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
        <subj-group subj-group-type="scientific_subject">
          <subject>(G31) Capital Budgeting • Fixed Investment and Inventory Studies • Capacity</subject>
          <subject>(M21) Business Economics</subject>
          <subject>(M40) General</subject>
          <subject>(Q35) Hydrocarbon Resources</subject>
          <subject>(Q54) Climate • Natural Disasters and Their Management • Global Warming</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Impact of temperature on the reporting performance of energy sector companies</article-title>
      </title-group>
      <contrib-group content-type="authors">
        <contrib contrib-type="author" corresp="yes">
          <name name-style="western">
            <surname>Rodchenkov</surname>
            <given-names>Mikhail V.</given-names>
          </name>
          <email xlink:type="simple">m.rodchenkov@gmail.com</email>
          <uri content-type="orcid">https://orcid.org/0000-0002-6938-2313</uri>
          <xref ref-type="aff" rid="A1">1</xref>
          <xref ref-type="aff" rid="A2">2</xref>
        </contrib>
      </contrib-group>
      <aff id="A1">
        <label>a</label>
        <addr-line content-type="verbatim">Lomonosov Moscow State University, Moscow, Russia</addr-line>
        <institution>Lomonosov Moscow State University</institution>
        <addr-line content-type="city">Moscow</addr-line>
        <country>Russia</country>
        <uri content-type="ror">https://ror.org/010pmpe69</uri>
      </aff>
      <aff id="A2">
        <label>b</label>
        <addr-line content-type="verbatim">Higher School of Management, Moscow, Russia</addr-line>
        <institution>Higher School of Management</institution>
        <addr-line content-type="city">Moscow</addr-line>
        <country>Russia</country>
      </aff>
      <author-notes>
        <fn fn-type="corresp">
          <p>Corresponding author: Mikhail V. Rodchenkov (<email xlink:type="simple">m.rodchenkov@gmail.com</email>).</p>
        </fn>
        <fn fn-type="edited-by">
          <p>Academic editor: </p>
        </fn>
      </author-notes>
      <pub-date pub-type="collection">
        <year>2026</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>30</day>
        <month>06</month>
        <year>2026</year>
      </pub-date>
      <volume>12</volume>
      <issue>2</issue>
      <fpage>274</fpage>
      <lpage>296</lpage>
      <uri content-type="arpha" xlink:href="http://openbiodiv.net/432D1321-4B2A-5831-B8F2-0235A5816E93">432D1321-4B2A-5831-B8F2-0235A5816E93</uri>
      <history>
        <date date-type="received">
          <day>11</day>
          <month>08</month>
          <year>2025</year>
        </date>
        <date date-type="accepted">
          <day>01</day>
          <month>10</month>
          <year>2025</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>Non-profit partnership “Voprosy Ekonomiki”</copyright-statement>
        <license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by-nc-nd/4.0/" xlink:type="simple">
          <license-p>This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits to copy and distribute the article for non-commercial purposes, provided that the article is not altered or modified and the original author and source are credited.</license-p>
        </license>
      </permissions>
      <abstract>
        <label>Abstract</label>
        <p>This study examines the impact of extreme temperatures on energy-sector companies, highlighting the financial and economic consequences of these tempera­tures as an important aspect of financial performance analysis. The research methodology­ is based on the application of regression models to corporate financial statements. This research obtained statistically significant evidence of a relationship among asset structure, financial flows, and external temperature for 55 publicly traded energy companies from 20 countries. The transformation of asset and cost structures is a necessary adaptation measure for companies operating in regions with harsh climates; the results reveal a significant excess of capital expenditures over operating expenses under such conditions. This study identified changes in the structure of financial flows that increased the financial burden and reduced investment attractiveness for these companies. The J-factor’s nonlinear function reflects greater variability in operating conditions at low temperatures than at high temperatures, explaining contradictions in capitalization between regions with hot and extremely cold climates. The forced nature of the changes and the involvement of many sectoral players heighten the challenges in finding solutions to ensure market fairness and mitigate the uneven impact of climate change on businesses in colder regions. This study’s results partially explain inconsistencies in tariff setting and product cost coordination among companies in regions with extreme climates and those in more temperate areas and outline the contours of required management decisions at the global, national, and corporate levels.</p>
        <p>The author expresses sincere gratitude to the attendees of the Lomonosov Readings in April 2025 and the 52<sup>nd</sup> EBES conference in Istanbul in July 2025 for their insightful comments. The author also thanks Professor Viktor Suyts for his continuous support and the companies that provided financial statements and valuable comments for this study.</p>
      </abstract>
      <kwd-group>
        <label>Keywords:</label>
        <kwd>extreme temperature</kwd>
        <kwd>IFRS</kwd>
        <kwd>sustainable development</kwd>
        <kwd>climate impact</kwd>
        <kwd>capital expenditure</kwd>
        <kwd>operating expenses.</kwd>
      </kwd-group>
      <custom-meta-group>
        <custom-meta>
          <meta-name>JEL classification</meta-name>
          <meta-value>G31, M21, M40, Q35, Q54</meta-value>
        </custom-meta>
      </custom-meta-group>
    </article-meta>
  </front>
  <body>
    <sec sec-type="1. Introduction" id="sec1">
      <title>1. Introduction</title>
      <p>In recent decades, various academic studies have investigated how environmental changes affect economic and social outcomes. This growing interest is driven, on the one hand, by a significant increase in the frequency of natural phenomena with negative and even catastrophic consequences, such as floods, tsunamis, cyclones, and snowstorms (<xref ref-type="bibr" rid="B20">Dell et al., 2014</xref>; <xref ref-type="bibr" rid="B37">Meierrieks, 2021</xref>; <xref ref-type="bibr" rid="B46">Rahmstorf and Coumou, 2011</xref>). On the other hand, it is driven by global climate change, which leads to a decline in gross domestic product (<abbrev xlink:title="gross domestic product">GDP</abbrev>) (<xref ref-type="bibr" rid="B9">Burke et al., 2015</xref>; <xref ref-type="bibr" rid="B13">Callahan and Mankin, 2022</xref>; <xref ref-type="bibr" rid="B39">Moyer et al., 2014</xref>), gross regional products (<abbrev xlink:title="gross regional products">GRP</abbrev>) (<xref ref-type="bibr" rid="B32">Kalkuhl and Wenz, 2020</xref>), and economic growth (<xref ref-type="bibr" rid="B51">Wan and Wang, 2024</xref>). The annual damage from environmental factors, even in the “climate-friendly” European Union, is expected to rise from EUR 4–5 billion per year in 2022 to EUR 32 billion per year by the middle of the 21<sup>st</sup> century (<xref ref-type="bibr" rid="B44">PwC, 2022</xref>). The impacts of climate change are unevenly distributed across countries and regions (<xref ref-type="bibr" rid="B33">King and Harrington, 2018</xref>); however, the geographic coverage of data and the level of spatial disaggregation in thematic studies remain limited (<xref ref-type="bibr" rid="B8">Brzezinska and Jasper, 2024</xref>). Research primarily focuses on global warming, increasing social stratification between developed and developing countries resulting from climate effects, and the analysis and prediction of how shifting climate patterns affect economic metrics at both the macro and micro levels (<xref ref-type="bibr" rid="B52">Wang and Lin, 2021</xref>; <xref ref-type="bibr" rid="B40">Nguyen and Khominich, 2023</xref>). It also examines the benefits of renewable energy adoption, particularly in sunny climates (<xref ref-type="bibr" rid="B55">Zehri, 2025</xref>), with limited consideration given to northern regions (<xref ref-type="bibr" rid="B11">Butt and Kousar, 2024</xref>). The effects of extreme temperatures, which are common in Northern Hemisphere countries such as Canada, Norway, Russia, and Kazakhstan, on economic activity and indicators are not the primary focus of academic research. Moreover, a large portion of production capacity in the extractive and manufacturing sectors — particularly those related to hydrocarbon energy sources — is located in these areas; therefore, research concerning them is becoming increasingly relevant and urgent.</p>
      <p>The discussion of how production elements of the modern economy respond to climatic conditions is an important component of the academic literature (<xref ref-type="bibr" rid="B43">Ponticelli et al., 2023</xref>). Some studies indicate a linear response in developing countries (<xref ref-type="bibr" rid="B19">Dell et al., 2012</xref>), while others indicate a clearly expressed nonlinear­ response at the regional level, even in economically developed countries (<xref ref-type="bibr" rid="B24">Graff Zivin and Neidell, 2014</xref>). Furthermore, some studies found no significant ­response to temperature at the macro level in wealthier countries (<xref ref-type="bibr" rid="B9">Burke et al., 2015</xref>). Research has also described this association as an inverse U-shaped nonlinear relationship between temperature and economic indicators, such as <abbrev xlink:title="gross domestic product">GDP</abbrev> per capita growth (<xref ref-type="bibr" rid="B14">Chang et al., 2020</xref>), labor productivity (<xref ref-type="bibr" rid="B12">Cai et al., 2018</xref>), and even sports results (<xref ref-type="bibr" rid="B45">Qiu and Zhao, 2019</xref>). Climatic conditions determine the nature of this dependence (U-conditions/factor) and influence corporate financial flows and the macroeconomic indicators of countries and regions. Studies on the consequences of global warming indicate that the symmetry of the letter “U” reflects the proportionality of the “upper” (hot) and “lower” (cold) temperature corridor; the apex is the point where the direction of temperature’s impact on the economy shifts. U-terms can affect the parameters of companies’ adaptation to unfavorable climatic conditions and the consequences of weather-related cataclysms (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>). At the same time, for companies located in regions with persistently cold temperatures, U-terms are more accurately considered J-terms. The short part of the “J” represents fewer restrictions and a narrower temperature corridor of “heat,” while the longer arc reflects more constraints imposed by severe cold and a wider temperature corridor below 0 °C. The temperature range of the external environment marked by frequent transitions through freezing and sustained extremely cold temperatures<sup><xref ref-type="fn" rid="en1">1</xref></sup> — typical of companies in the Northern Hemisphere (<xref ref-type="bibr" rid="B4">Al-Shatnawi et al., 2024</xref>) — contrasts starkly with the conditions of energy resource extraction and transport in milder climates where end consumers are located. Shifting work activity to nighttime in hot regions can significantly ease production constraints; however, cold environments do not offer similar flexibility. Cold regions are characterized by forecast uncertainty, leading to long and unpredictable periods of “waiting for the weather,” which significantly reduces the time available for outdoor work in unprotected environments (<xref ref-type="bibr" rid="B27">Gudmestad and Karunakaran, 2012</xref>). This situation alters the balance between inputs (material, labor, and financial resources) and outputs (productivity, competitiveness, and financial performance), especially compared to companies operating in more moderate climates. Compared to their sectoral counterparts in temperate climates­, companies operating in severely cold regions change their financial model structure (assets and expenses), one of the key elements in business adaptation to specific temperature regimes (J-terms). This change also constitutes a factor in the broader competitive environment.</p>
      <p>Companies operating in regions with severe temperature conditions face higher adaptation costs, resulting in increased financial strain and less attractive financial metrics for investors due to the greater upfront investments required (<xref ref-type="bibr" rid="B7">Bonakdar et al., 2017</xref>). These differences create a competitive advantage for certain market players and warrant consideration when evaluating the efforts of relevant companies in achieving Sustainable Development Goals (<abbrev xlink:title="Sustainable Development Goals">SDGs</abbrev>) and mitigating environmental, social, and governance (<abbrev xlink:title="environmental, social, and governance">ESG</abbrev>) risks. Corporate assessments are foundational in shaping global macroeconomic indicators (such as <abbrev xlink:title="gross domestic product">GDP</abbrev>, <abbrev xlink:title="gross regional products">GRP</abbrev>, and industry-specific metrics) and determining the attractiveness of companies’ investments. Therefore, the relevance of studies examining the temperature — economic dependency of corporate reporting indicators (including the structure of balance sheet assets and company expenses) will continue to grow.</p>
      <p>Our study examines the dominance of specific information-significant reporting indicators (<abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev>) (<xref ref-type="bibr" rid="B47">Rodchenkov, 2022</xref>) in categorizing costs that contri­bute to the residual value of fixed assets (<abbrev xlink:title="fixed assets">FA</abbrev>) in energy-sector companies. The tested hypothesis suggests that the harsh temperature conditions<sup><xref ref-type="fn" rid="en2">2</xref></sup> where these companies operate can increase investment in production facilities (higher <abbrev xlink:title="fixed assets">FA</abbrev> costs) and change the structure of financial flows. These factors result in a relative, though not absolute, reduction in operating expenses and depreciation charges. This study reviews the theoretical aspects of uneven adaptation, examines empirical approaches to assessing adaptation elements, and conducts an empirical analysis to test this hypothesis. The results are then examined and discussed.</p>
    </sec>
    <sec sec-type="2. Review of the theoretical aspects of uneven adaptation" id="sec2">
      <title>2. Review of the theoretical aspects of uneven adaptation</title>
      <p>The academic debate on the relationship between weather effects and economic indicators addresses various issues related to identifying, accounting for, and mitigating the negative consequences of natural disasters. Consistent with the logic of identifying changes that companies undergo due to climatic factors­, this process constitutes the internal basis of adaptation (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>). Successful adaptation largely depends on three key elements: timely recognition of the need for adaptation, an incentive to adapt, and the capacity to adapt. The introduction of new information technologies into related processes (<xref ref-type="bibr" rid="B10">Butt and Abdelaziz, 2025</xref>) and systemic government support for investment schemes within the framework of institutional and multilateral lending and aid funds, in accordance with the recommendations of the Task Force on Climate-related Financial Disclosures (<abbrev xlink:title="Task Force on Climate-related Financial Disclosures">TCFD</abbrev>) (<xref ref-type="bibr" rid="B11">Butt and Kousar, 2024</xref>), facilitate effective adap­tation. In most cases, such an adaptation may not require direct investments tied to climate-change structures; instead, it may involve reallocating one type of capital to another (<xref ref-type="bibr" rid="B22">Fankhauser et al., 1999</xref>).</p>
      <p>The content, pace, and cost of adaptation are context-dependent on climate-impact parameters, with temperature — economic dependence playing a decisive role (<xref ref-type="bibr" rid="B48">Song et al., 2023</xref>). Weather affects regional economic growth, sectoral economies, production factors, and productivity (<xref ref-type="bibr" rid="B51">Wan and Wang, 2024</xref>), and temperature influences adaptation parameters through sectoral specifics, means of production (infrastructure and technology), and labor and material resources.</p>
      <p>One factor influencing adaptation costs is business size, which enables the diversification of climate risks (<xref ref-type="bibr" rid="B1">Acharya et al., 2023</xref>). Larger production structures are generally less susceptible to the negative impacts of climate change, apparently­ due to higher initial investments that provide a certain “safety margin” for operating conditions and equipment (<xref ref-type="bibr" rid="B43">Ponticelli et al., 2023</xref>).</p>
      <p>Differences in business characteristics lead to significant disparities in adaptation capabilities. This suggests that technology and experience alone are unlikely to fully mitigate global economic losses (<xref ref-type="bibr" rid="B21">Deryugina and Hsiang, 2014</xref>) and that adaptation to climate change may be more complex and far-reaching than pre­viously thought (<xref ref-type="bibr" rid="B50">Tol, 2009</xref>; <xref ref-type="bibr" rid="B9">Burke et al., 2015</xref>).</p>
    </sec>
    <sec sec-type="3. Empirical approaches to assessing adaptation" id="sec3">
      <title>3. Empirical approaches to assessing adaptation</title>
      <p>The available data highlight several important aspects of this study’s methodo­logical focus and the a priori perception of the phenomena considered. First, a significant portion of the empirical research focuses on assessing rising temperatures, noting that adaptation effects imply that warming can induce adaptive behavior aimed at better coping with changing climatic conditions (<xref ref-type="bibr" rid="B38">Meierrieks and Stadelmann, 2024</xref>). In this context, the adaptation of economic actors is considered and assessed in view of the long-term impact of temperature increases beyond established climatic norms (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>). Climate change is typically regarded as a cumulative and persistent phenomenon (<xref ref-type="bibr" rid="B25">Greßer et al., 2020</xref>). Consistent with the global-warming agenda, many studies have concentrated on the impacts of high temperatures, presenting evidence of adverse effects on humans and the environment (<xref ref-type="bibr" rid="B5">Barreca, 2012</xref>; <xref ref-type="bibr" rid="B17">Dahl et al., 2019</xref>; <xref ref-type="bibr" rid="B41">Otto et al., 2018</xref>; <xref ref-type="bibr" rid="B54">Zanocco et al., 2018</xref>), including agricultural production (<xref ref-type="bibr" rid="B15">Churchill et al., 2023</xref>), manufacturing (<xref ref-type="bibr" rid="B43">Ponticelli et al., 2023</xref>), labor productivity across sectors (<xref ref-type="bibr" rid="B12">Cai et al., 2018</xref>), labor income (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>), and regional financial stability (<xref ref-type="bibr" rid="B53">Wu et al., 2023</xref>).</p>
      <p>Studies on the temperature — economic relationship by business size reveal a consistent pattern. Specifically, above-average temperatures increase energy costs and reduce productivity in small enterprises, with little to no effect on larger firms (<xref ref-type="bibr" rid="B43">Ponticelli et al., 2023</xref>); thus, the primary analytical focus remains on adaptation to warming. Moreover, extreme temperatures are widely recognized as one of the most destructive environmental factors (<xref ref-type="bibr" rid="B31">IFRC, 2022</xref>). At the same time, data on the impact of extreme temperatures on corporate financial reporting remain fragmentary (<xref ref-type="bibr" rid="B2">Addoum et al., 2020</xref>, <xref ref-type="bibr" rid="B3">2023</xref>; <xref ref-type="bibr" rid="B42">Pankratz et al., 2023</xref>). Research on the impact of severe temperature conditions on company operations, infrastructure (<xref ref-type="bibr" rid="B16">Coonan, 2023</xref>), and productivity (<xref ref-type="bibr" rid="B57">Zhang et al., 2023</xref>) is also scarce.</p>
      <p>The issue of how production elements function under harsh temperatures falls largely outside the scope of existing studies. However, the geographic expansion of production activities into regions with harsh climates, especially in the energy­ sector, highlights the need to understand the effects of low temperatures on techno­logical processes (<xref ref-type="bibr" rid="B23">Galikeev et al., 2015</xref>; <xref ref-type="bibr" rid="B27">Gudmestad and Karunakaran, 2012</xref>), corporate performance, and financial outcomes (<xref ref-type="bibr" rid="B26">Griffin et al., 2024</xref>).</p>
      <p>Second, research results are often considered and assessed as external effects, which imposes certain restrictions on their applicability and shapes their interpretation. Thus, some countries have successfully adapted to both hot (the United Arab Emirates) and cold (Canada) climates (<xref ref-type="bibr" rid="B25">Greßer et al., 2020</xref>). At the same time, enterprises that have successfully adapted to high temperatures gain a particular competitive advantage (<xref ref-type="bibr" rid="B43">Ponticelli et al., 2023</xref>). However, the cost of this competitive advantage (and its economic assessment, given the high cost of modern energy-saving technologies, materials, and specialized competencies) remains largely outside the scope of research on the temperature — economic relationship (<xref ref-type="bibr" rid="B7">Bonakdar et al., 2017</xref>; <xref ref-type="bibr" rid="B4">Al-Shatnawi et al., 2024</xref>). Existing research primarily assesses the comparative feasibility of such adaptation at the national and regional levels (<xref ref-type="bibr" rid="B9">Burke et al., 2015</xref>).</p>
      <p>Therefore, defining and reliably assessing the nature of the relationship between severe temperatures and corporate reporting indicators — specifically the cost characteristics of production assets and the financial resources required to maintain their operability — is of significant academic and applied relevance. It is imperative to consider these aspects when making decisions related to financial flow management and selecting medium- and long-term investment targets capable of mitigating the negative impact of the J-factor and supporting corporate competitiveness.</p>
    </sec>
    <sec sec-type="4. Methods and data" id="sec4">
      <title>4. Methods and data</title>
      <sec sec-type="4.1. Research approach" id="sec5">
        <title>
          <italic>4.1. Research approach</italic>
        </title>
        <p>This study’s research approach is based on a comprehensive examination of the relationship (interdependence) between reporting indicators reflecting the structure of <abbrev xlink:title="fixed assets">FA</abbrev> and business financial flows, and the severe temperature conditions in regions where the main production activities of energy companies are located across various jurisdictions. The choice of sector is driven by stronger incentives for adaptation among companies in extractive industries because specific technological processes are required in external environments (<xref ref-type="bibr" rid="B49">Somanathan et al., 2021</xref>). Our study’s research approach is grounded in the following:</p>
        <p>(a) An enterprise’s adaptation activities (related to <abbrev xlink:title="fixed assets">FA</abbrev>, technological processes, and labor resources) require greater investments and expenses than those of competitors operating in more moderate conditions within the same sector. These investments lead to higher costs and changes in the asset structure, while adaptation-related costs alter corporate cash flows and expenditure patterns. This forced increase in investment and operating spending affects the company’s financial position, operational capabilities, investment attractiveness, and overall competitiveness.</p>
        <p>(b) The specificity of severe temperatures lies in the predominant increase in <abbrev xlink:title="fixed assets">FA</abbrev> costs, which primarily leads to changes in the structure and volume of expenses. Extremely cold climates require strict design standards for permanent facilities and shortened construction periods, discouraging an <italic>ad hoc</italic> approach and establishing a foundation for the long-term use of such infrastructure. This situation contributes to a relative reduction in future operating expenses. In other words, the share of capital expenditures (<italic><abbrev xlink:title="capital investments">CapEx</abbrev></italic>) is higher and the share of operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>) is lower for companies operating in harsh climates than for those in regions with more favorable temperature regimes. Therefore, the net value of <abbrev xlink:title="fixed assets">FA</abbrev> is used to assess changes in the structure of tangible assets. This indicator comprises a significant portion of the balance sheet for industrial companies, especially those involved in mining and processing in the energy sector. Changes in <abbrev xlink:title="fixed assets">FA</abbrev> value significantly affect such businesses’ financial models. Accrued depreciation is used to assess changes in the cost structure associated with the use of <abbrev xlink:title="fixed assets">FA</abbrev>, taking adaptation into account. Additionally, the amount of capital included in the analysis is both the initial source of <italic><abbrev xlink:title="capital investments">CapEx</abbrev></italic> and an important factor in the parameterization of the adaptation process.</p>
        <p>(c) Changes in business financial flows are assessed using expense measures, unlike previous studies that used income as a target indicator (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>). Within the logic of adaptation, expenses are viewed as more relevant than changes in income. Other economic factors are not examined in detail; however, given the scope of this study, the potential influence of omitted variables is acknowledged.</p>
        <p>(d) Panel data from official corporate financial statements are used for the analy­sis. These data are considered more reliable because independent professional auditors verify their accuracy. Additionally, discrete financial data are more ­effective for identifying and evaluating economic features, specifically changes in the structure of reporting indicators under the influence of the temperature factor (J-terms). Geoclimatic diversification was applied by temperature conditions to improve the validity of the results.</p>
        <p>(e) Following previous research on temperature — economic dependence (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>; <xref ref-type="bibr" rid="B51">Wan and Wang, 2024</xref>), the primary climate variable is an indicator of severe temperatures, which is treated as an exogenous factor. Other weather variables are not considered, based on the assumption that their impact on the general economy is insignificant (<xref ref-type="bibr" rid="B51">Wan and Wang, 2024</xref>).</p>
        <p>(f) Double testing ensures the reliability of identifying the relationship between <abbrev xlink:title="fixed assets">FA</abbrev> value and temperature. Forward testing treats the severe temperature variable as the primary independent variable, and its impact on <abbrev xlink:title="fixed assets">FA</abbrev> value is analyzed. Backward testing evaluates the extent to which changes in cost indicators (predictors) correspond to severe temperatures.</p>
        <p>The empirical strategy for regression modeling involves initially constructing a model with the maximum set of independent variables. This step is followed by backward selection to isolate the most significant predictors for the dependent variable; thus, the research approach effectively addresses the study’s objectives and objectively validates the research hypothesis.</p>
      </sec>
      <sec sec-type="4.2. Research stages" id="sec6">
        <title>
          <italic>4.2. Research stages</italic>
        </title>
        <p>The research followed a systematic approach to address the outlined objectives. The research stages included the following:</p>
        <p>(1) To form an array of primary data based on official corporate reports;</p>
        <p>(2) To develop initial assumptions and select reporting indicators that reflect material and cost characteristics of business operations;</p>
        <p>(3) To conduct regression and multivariate analyses of the relationship between the selected reporting indicators and the severe temperature conditions typical of the sampled companies’ production areas;</p>
        <p>(4) To present conclusions and recommendations based on the results of hypo­thesis testing.</p>
      </sec>
      <sec sec-type="4.3. Applicable methodology" id="sec7">
        <title>
          <italic>4.3. Applicable methodology</italic>
        </title>
        <p>The research methodology is based on regression and multivariate analysis, providing clear algorithms for processing temperature — economic relationship data (<xref ref-type="bibr" rid="B9">Burke et al., 2015</xref>; <xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>; <xref ref-type="bibr" rid="B51">Wan and Wang, 2024</xref>). The core tools used in the analysis are linear ordinary least squares (<abbrev xlink:title="ordinary least squares">OLS</abbrev>) and generalized linear models (<abbrev xlink:title="generalized linear models">GLMs</abbrev>) for multiple regression. These models are known for producing high-quality statistical estimates with well-defined calculation algorithms. Additionally, applying <abbrev xlink:title="generalized linear models">GLMs</abbrev> and recoding the response variable (where necessary) simplifies the analysis and enhances the practical significance of the results. The classical calculation of beta-coefficient values is applied to understand each independent variable’s weight (contribution) to the overall change in the dependent variable.</p>
        <p>A specific form of GLM (binomial regression) was employed to assess the probability of severe temperature conditions in response to changes in cost indicators. The limitations typically associated with multiple regression analysis for such tasks are addressed by reframing the problem. Rather than predicting a binary outcome, the model estimates a continuous dependent variable with values in the interval [0, 1] based on given values of the independent variables. This approach uses the logit transformation (1):</p>
        <p><italic>P</italic> = 1/(1 + <italic>e <sup>– y</sup></italic>), (1)</p>
        <p>where <italic>P</italic> is the probability of event occurrence (correspondence to severe tempera­tures), <italic>e</italic> is the base of the natural logarithm (2.718…), and <italic>y</italic> is the standard regression equation.</p>
        <p>If <italic>P<sub>i</sub></italic> reflects the probability of success for the <italic>i</italic>-th observation, <italic>i</italic> = 1, ... , <italic>N</italic>; <italic>Xβ</italic> is a linear predictor, the link function connects the covariates of each observation to its corresponding probability via the linear predictor. In logistic regression, the logit link (2) is used:</p>
        <p><italic>Xβ</italic> = ln(<italic>P</italic>/(1 – <italic>P</italic>)). (2)</p>
        <p>The regression coefficient (<italic>βk</italic>) represents the change in the logarithm of the odds associated with a one-unit change in the value of the <italic>Xk</italic> covariate; thus, exp(<italic>βk</italic>) is the odds ratio associated with a one-unit change in <italic>Xk.</italic> Presenting results as odds ratios makes them easier to interpret. If exp(<italic>βk</italic>) &gt; 1 (equivalently, <italic>βk</italic> &gt; 0), then the odds of the outcome increase as the predictor variable increases. If exp(<italic>βk</italic>) &lt; 1 (equivalently, <italic>βk</italic> &lt; 0), then the odds of the outcome decrease as the predictor variable increases.</p>
        <p>The target indicator’s predicted probability (marginal effect) was calculated for each independent variable to refine the boundaries and strength of the relationship between the severe temperature indicator and the explanatory variables, assuming that mean values of all other variables in the model were held constant. To evaluate the regression results, a statistical significance level of <italic>α</italic> = 0.1 was set, ensuring the required degree of reliability (<xref ref-type="bibr" rid="B56">Zeilinger et al., 2024</xref>).<sup><xref ref-type="fn" rid="en3">3</xref></sup></p>
      </sec>
      <sec sec-type="4.4. Data" id="sec8">
        <title>
          <italic>4.4. Data</italic>
        </title>
        <sec sec-type="4.4. Data" id="sec9">
          <title>
            <italic>4.4.1. Temperature regime and regional gradation</italic>
          </title>
          <p>The regions were classified by temperature indicator, considering the following criteria. First, following the methodology of <xref ref-type="bibr" rid="B30">Huang et al. (2023)</xref>, cold regions with severe temperatures were identified. These include the mid-to-high-latitude cold regions (<abbrev xlink:title="mid-to-high-latitude cold regions">MHLCR</abbrev>) and the Qinghai — Tibetan Plateau cold regions (<abbrev xlink:title="Qinghai — Tibetan Plateau cold regions">QTPCR</abbrev>) in the Northern Hemisphere. Based on the findings of <xref ref-type="bibr" rid="B35">Köppen (1936)</xref> and <xref ref-type="bibr" rid="B6">Bates and Bilello (1966)</xref>, the generalized characteristics of cold regions include an average temperature in the coldest month below −3 °C, no more than five months per year with temperatures above 10 °C, and an average annual temperature not exceeding 5 °C. Moreover, these regions exhibit a freezing depth of more than 0.3 meters at least once every 10 years.</p>
          <p>Second, according to publicly available data on average annual temperatures provided by international aggregators<sup><xref ref-type="fn" rid="en4">4</xref></sup> and considering the sample’s 20-year mean average annual temperature (mean TAverage20Year = 10 °C), three categories were defined with a step of ±5 °C. This approach was used to grade the elements of the sample according to the severity of their operating conditions:</p>
          <list list-type="bullet">
            <list-item>
              <p>• [+5 °C to +15 °C] — comfortable temperatures;
</p>
            </list-item>
            <list-item>
              <p>• [+16 °C to +20 °C] + [+5 °C to 0 °C] — moderate temperatures;
</p>
            </list-item>
            <list-item>
              <p>• [+21 °C to +25 °C] + [−5 °C to 0 °C] — severe temperatures.
</p>
            </list-item>
          </list>
          <p>Given the overlap between category three and the characteristics of cold regions, all sample elements were classified into three categories to streamline the structuring of elements within the sample, recognizing that the lower limit of severe temperatures is substantially wider than the upper limit (J-terms).</p>
        </sec>
        <sec sec-type="4.4.2. Data on corporate financial reporting indicators" id="sec10">
          <title>
            <italic>4.4.2. Data on corporate financial reporting indicators</italic>
          </title>
          <p>This study’s dataset consists of financial reporting indicators for the public companies included in the sample. The sources of the values were statements of financial position and statements of comprehensive income prepared in accordance with IFRS or US GAAP; if these were unavailable, we used financial statements prepared according to national standards.</p>
          <p>The research objects were public companies in the energy sector engaged in hydrocarbon production, transportation, trade, and processing. Our study ­focuses on sectoral public companies due to their higher discipline in reporting and disclosure, driven by regulatory frameworks and the requirements of organized­ market administrations. Furthermore, focusing on a single sector helps minimize the risk of bias in estimates commonly observed in cross-sectoral studies­ (<xref ref-type="bibr" rid="B29">Hsiang, 2016</xref>).</p>
          <p>The study utilized corporate reporting data from 2019 and 2020. These periods were selected to evaluate the relationships under normal (growth) market conditions and during a downturn caused by the COVID-19 pandemic. We aggre­gated the data from official corporate disclosure resources and international­ly recognized financial and economic data aggregators, including Bloomberg and Yahoo Finance.</p>
          <p>It is standard practice to include data from companies in various economies. For example, a study on the relationship between temperature and income included data from 12 countries (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>). This approach enhances the objectivity of the findings and broadens their potential applicability, generating wider research interest. Following this logic, our study’s sample was diversified in political and geographic representation, comprising companies headquartered in 20 countries. This diversification helps ensure objectivity and reduces the risk of bias toward any particular climatic region. The sample was also diversified by production specialization, encompassing extractive, processing, logistics, and intermediary companies in the energy resource market. The final sample included 55 public companies representing most of the key players in the global energy industry.</p>
        </sec>
      </sec>
      <sec sec-type="4.5. Conceptual assumptions and assignment of variables" id="sec11">
        <title>
          <italic>4.5. Conceptual assumptions and assignment of variables</italic>
        </title>
        <p>This study constructed a conceptual model for the relationship between the severe temperature indicator and corporate financial reporting indicators based on modified models of the relationship between income and temperature (<xref ref-type="bibr" rid="B18">Dell et al., 2009</xref>; <xref ref-type="bibr" rid="B38">Meierrieks and Stadelmann, 2024</xref>). Following this logic, the conceptual elements of the regression constructions include the following:</p>
        <p>(1) The climatic variable (severe temperature indicator <italic>TemperatureCold</italic>);</p>
        <p>(2) Indicators (log-transformed using the natural logarithm) of corporate financial statements reflecting the structure of assets and financial flows most sensitive to adaptation processes:<sup><xref ref-type="fn" rid="en5">5</xref></sup> the cost of <abbrev xlink:title="fixed assets">FA</abbrev> (property, plant, and equipment, Net [<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>]); the amount of accrued depreciation for the year (depreciation, depletion, and amortization [<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>]); operating expenses for the reporting year (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>); and the amount of capital (shareholders’ equity [<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>]);</p>
        <p>(3) Indicators of <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> dynamics — deltas for the period from 2019 to 2020:</p>
        <p>Δ<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln = <italic>OpEx2020</italic>ln − <italic>OpEx2019</italic>ln;</p>
        <p>Δ<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln = <italic>DD&amp;A2020</italic>ln − <italic>DD&amp;A2019</italic>ln;</p>
        <p>Δ<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln = <italic>SE2020</italic>ln − <italic>SE2019</italic>ln;</p>
        <p>(4) An indicator capturing the vector of unaccounted variables (cumulative error).</p>
        <p>The conceptual assumptions were built by considering the importance of <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> in assessing the relationship of indicators with severe climatic conditions.</p>
        <p>(a) Companies planning to operate in harsh temperature conditions must consider increased requirements related to equipment and workforce performance when forming and implementing capital investments (<italic><abbrev xlink:title="capital investments">CapEx</abbrev></italic>) in the necessary equipment and production assets. The value of <abbrev xlink:title="fixed assets">FA</abbrev> serves as an aggregate reflection of these investments and is reported accordingly. A change in <abbrev xlink:title="fixed assets">FA</abbrev> value (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>) and its correlation with the severe temperature indicator can be used to assess the validity of the first part of the hypothesis.</p>
        <p>(b) As the primary source of initial capital investments (<italic><abbrev xlink:title="capital investments">CapEx</abbrev></italic>), a high volume­ of capital (<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>) offsets the impact of harsh temperatures on the value of <abbrev xlink:title="fixed assets">FA</abbrev> (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>) by enabling higher investment levels regardless of climatic conditions. Consequently, the predictive value of capital is assumed to be low, making it reasonable to exclude this indicator in subsequent model constructions.</p>
        <p>(c) The operating expenses indicator (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>) is more important during a company’s operational phase, as the impact of severe temperature conditions is assumed to have been addressed during the design and preparation stages. Moreover, the relevance of operating expenses is reinforced by including <abbrev xlink:title="fixed assets">FA</abbrev> depreciation. This inclusion justifies the exclusion of accrued depreciation as a separate variable during the systematic reduction of predictors.</p>
        <p>(d) Depreciation charges (<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>) are a derivative of the value of <abbrev xlink:title="fixed assets">FA</abbrev> but allow­ assessment of changes under the influence of temperature; however, given their inclusion in operating expenses, they can be excluded from further model constructions in favor of <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>.</p>
        <p>According to this research approach, two models were developed for “forward” and “backward” testing.</p>
        <sec sec-type="4.5.1. Conceptual model of the relationship between severe temperatures and FA value with PP&amp;Eln as the dependent variable" id="sec12">
          <title>
            <italic>4.5.1. Conceptual model of the relationship between severe temperatures and <abbrev xlink:title="fixed assets">FA</abbrev> value with PP&amp;Eln as the dependent variable</italic>
          </title>
          <p>Following the above research approach, the conceptual model with a complete set of predictors is described by equation (3):</p>
          <p><italic>PP</italic>&amp;<italic>E</italic>ln = <italic>β</italic><sub>0</sub> + <italic>β<sub>i</sub></italic><sub>1</sub><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln + <italic>β<sub>i</sub></italic><sub>2</sub><italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln + <italic>β<sub>i</sub></italic><sub>3</sub><italic>Temperature3</italic> + <italic>β<sub>i</sub></italic><sub>4</sub><italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln +</p>
          <p>+ (<italic>β<sub>i</sub></italic><sub>5</sub><italic>∆<abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln + <italic>β<sub>i</sub></italic><sub>6</sub><italic>∆<abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln + <italic>β<sub>i</sub></italic><sub>7</sub><italic>∆<abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln) + <italic>ε</italic>, (3)</p>
          <p>where <italic>β</italic><sub>0</sub> is the constant; <italic>β<sub>ij</sub></italic> is the variable coefficient; <italic>ε</italic> is the vector of omitted variables (error term).</p>
          <p>The model includes (Table <xref ref-type="table" rid="T1">1</xref>) variables based on the natural logarithms of nominal <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> indicators: the cost of <abbrev xlink:title="fixed assets">FA</abbrev> (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln), operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln), annual depreciation charges (<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln), and capital (<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln). We also include <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> dynamics indicators (see (3)).</p>
          <table-wrap id="T1" position="float" orientation="portrait">
            <label>Table 1</label>
            <caption>
              <p>Descriptive statistics for model variables (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln).</p>
            </caption>
            <table>
              <tbody>
                <tr>
                  <th rowspan="1" colspan="1">Variable</th>
                  <th rowspan="1" colspan="1">Obs.</th>
                  <th rowspan="1" colspan="1">Mean</th>
                  <th rowspan="1" colspan="1">Std. dev.</th>
                  <th rowspan="1" colspan="1">Min</th>
                  <th rowspan="1" colspan="1">Max</th>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">2020</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">7.661</td>
                  <td rowspan="1" colspan="1">1.401</td>
                  <td rowspan="1" colspan="1">4.708</td>
                  <td rowspan="1" colspan="1">10.085</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">7.608</td>
                  <td rowspan="1" colspan="1">1.268</td>
                  <td rowspan="1" colspan="1">4.389</td>
                  <td rowspan="1" colspan="1">9.960</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Δ<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">−0.080</td>
                  <td rowspan="1" colspan="1">0.121</td>
                  <td rowspan="1" colspan="1">−0.376</td>
                  <td rowspan="1" colspan="1">0.113</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Δ<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.235</td>
                  <td rowspan="1" colspan="1">0.287</td>
                  <td rowspan="1" colspan="1">−0.292</td>
                  <td rowspan="1" colspan="1">1.262</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Δ<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.130</td>
                  <td rowspan="1" colspan="1">0.218</td>
                  <td rowspan="1" colspan="1">−0.309</td>
                  <td rowspan="1" colspan="1">1.088</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 1</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.455</td>
                  <td rowspan="1" colspan="1">0.503</td>
                  <td rowspan="1" colspan="1">0</td>
                  <td rowspan="1" colspan="1">1</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 3</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.291</td>
                  <td rowspan="1" colspan="1">0.458</td>
                  <td rowspan="1" colspan="1">0</td>
                  <td rowspan="1" colspan="1">1</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">2019</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">7.518</td>
                  <td rowspan="1" colspan="1">1.391</td>
                  <td rowspan="1" colspan="1">4.503</td>
                  <td rowspan="1" colspan="1">9.693</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">7.687</td>
                  <td rowspan="1" colspan="1">1.279</td>
                  <td rowspan="1" colspan="1">4.389</td>
                  <td rowspan="1" colspan="1">9.993</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 1</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.455</td>
                  <td rowspan="1" colspan="1">0.503</td>
                  <td rowspan="1" colspan="1">0</td>
                  <td rowspan="1" colspan="1">1</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 3</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.291</td>
                  <td rowspan="1" colspan="1">0.458</td>
                  <td rowspan="1" colspan="1">0</td>
                  <td rowspan="1" colspan="1">1</td>
                </tr>
              </tbody>
            </table>
            <table-wrap-foot>
              <fn>
                <p><italic>Source</italic>: Author’s calculations.</p>
              </fn>
            </table-wrap-foot>
          </table-wrap>
          <p>Finally, the model includes a severe temperature conditions indicator, reflected by the ordered variable <italic>Temperature3</italic>, which has three ordered values: 1 = comfortable, 2 = moderate (average), and 3 = extreme (severe conditions). <italic>Temperature3</italic> = 2 (moderate temperatures) is assigned as the base category in this model. This approach allows us to control the influence of changes in temperature conditions on changes in the dependent variable, <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln.</p>
          <p>The set of coefficients (<italic>β<sub>i</sub></italic><sub>5</sub>, <italic>β<sub>i</sub></italic><sub>6</sub>, and <italic>β<sub>i</sub></italic><sub>7</sub>) for the <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> dynamics variables reflects the direction of change in the variables, allowing assessment of the emerging trend in the transformation of the structure of assets and financial flows.</p>
          <p>The descriptive statistics indicate that the <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> dynamics variables are not normally distributed (see Table <xref ref-type="table" rid="T1">1</xref>). Therefore, their use was limited to monitoring their importance (beta weight) in the model (OLSBeta), confirming their lack of statistical significance in influencing the dependent variable.</p>
          <p>The <abbrev xlink:title="ordinary least squares">OLS</abbrev> regressions built to test the conceptual assumptions (Table <xref ref-type="table" rid="T2">2</xref>) support the following conclusions. The results of the OLS1 regression confirm the conceptual assumptions. The <italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln variable in the predictor set neutralizes­ the relationship between severe temperature conditions (<italic>Temperature3</italic>) and the dependent variable. The coefficients for <italic>Temperature3</italic> are not statistically significant. Moreover, the signs of the coefficients vary: (−) for <italic>Temperature3</italic> = 1 (comfortable temperatures) and (+) for <italic>Temperature3</italic> = 3 (severe temperatures). Relative to the base category (<italic>Temperature3</italic> = 2, moderate temperatures), ­severe conditions increase <abbrev xlink:title="fixed assets">FA</abbrev> cost, while comfortable conditions contribute to its decrease. In the OLSBeta model, excluding the capital indicator (<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln) from the predictors, in line with the conceptual assumptions, makes the coefficient for severe temperatures (<italic>Temperature3</italic> = 3) statistically significant.</p>
          <table-wrap id="T2" position="float" orientation="portrait">
            <label>Table 2</label>
            <caption>
              <p>Summary indicators of conceptual regressions <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln.</p>
            </caption>
            <table>
              <tbody>
                <tr>
                  <td rowspan="2" colspan="1">Variable</td>
                  <td rowspan="1" colspan="2">Conceptual (preliminary)</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">OLS1</td>
                  <td rowspan="1" colspan="1">OLSBeta</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">0.974</td>
                  <td rowspan="1" colspan="1">0.945***</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">0.386***</td>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1">0.494***</td>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 1</td>
                  <td rowspan="1" colspan="1">−0.005</td>
                  <td rowspan="1" colspan="1">0.228</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 2</td>
                  <td rowspan="1" colspan="1">base</td>
                  <td rowspan="1" colspan="1">base</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>Temperature3</italic> = 3</td>
                  <td rowspan="1" colspan="1">0.152</td>
                  <td rowspan="1" colspan="1">0.665**</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Δ<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.750</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Δ<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.245</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Δ<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.001</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">const</td>
                  <td rowspan="1" colspan="1">1.112**</td>
                  <td rowspan="1" colspan="1">0.173</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Obs.</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">55</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">aic</td>
                  <td rowspan="1" colspan="1">71.429</td>
                  <td rowspan="1" colspan="1">136.999</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">bic</td>
                  <td rowspan="1" colspan="1">83.473</td>
                  <td rowspan="1" colspan="1">151.050</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">rank</td>
                  <td rowspan="1" colspan="1">6</td>
                  <td rowspan="1" colspan="1">7</td>
                </tr>
              </tbody>
            </table>
            <table-wrap-foot>
              <fn>
                <p><italic>Note</italic>: * <italic>p</italic> &lt; 0.l, ** <italic>p</italic> &lt; 0.05, *** <italic>p</italic> &lt; 0.01. <italic> Source</italic>: Author’s calculations.</p>
              </fn>
            </table-wrap-foot>
          </table-wrap>
          <p>The results of the OLSBeta model (see Table <xref ref-type="table" rid="T2">2</xref>) show the highest weight and significance (<italic>β</italic> = 0.945; <italic>p</italic> &lt; 0.01) for normalized operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln). The results also show a significant influence (<italic>β</italic> = 0.665; <italic>p</italic> &lt; 0.05) of severe tempera­ture conditions (<italic>Temperature3</italic> = 3). Finally, we find the statistical insignificance of the dynamics indicators among the <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> predictors. Based on these results, it is possible to identify the predictor set for the optimal model for the main testing.</p>
        </sec>
        <sec sec-type="4.5.2. Conceptual model of the relationship between changes in cost indicators and the indicator of severe temperatures (TemperatureCold)" id="sec13">
          <title>
            <italic>4.5.2. Conceptual model of the relationship between changes in cost indicators and the indicator of severe temperatures (TemperatureCold)</italic>
          </title>
          <p>The model aims to identify changes in the probability of severe temperatures in response to changes in cost indicators reflected by the predictors. To test the relationship between severe temperatures and a company’s material and cost indicators using the backward method, <italic>TemperatureCold</italic> is specified as the dependent variable and coded as a categorical variable (1 = “severe temperatures,” 0 = “other, non-severe conditions”), reflecting compliance with the target climatic conditions.</p>
          <p>The model with a complete set of predictors for the conceptual regression <italic>TemperatureCold</italic> is described by equation (4):</p>
          <p><italic>TemperatureCold</italic> = <italic>β</italic><sub>0</sub> + <italic>β<sub>i</sub></italic><sub>1</sub><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> + <italic>β<sub>i</sub></italic><sub>2</sub><italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup> + <italic>β<sub>i</sub></italic><sub>3</sub><italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup> +</p>
          <p>+ <italic>β<sub>i</sub></italic><sub>4</sub><italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln<sup>2</sup> + <italic>ε</italic>, (4)</p>
          <p>where <italic>β</italic><sub>0</sub> is the constant; <italic>β<sub>ij</sub></italic> is the variable coefficient; <italic>ε</italic> is the residual (error term).</p>
          <p>According to the conceptual assumptions, the model includes (Table <xref ref-type="table" rid="T3">3</xref>) squared natural logarithms of the indicators for <abbrev xlink:title="fixed assets">FA</abbrev> cost (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>), operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup>), annual depreciation charges (<italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup>), and capital (<italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln<sup>2</sup>). The model also includes an indicator of severe temperature conditions, reflected by the binary categorical variable <italic>TemperatureCold</italic>: 1 = “severe temperature conditions” and 0 = “not severe (normal) temperatures.”</p>
          <table-wrap id="T3" position="float" orientation="portrait">
            <label>Table 3</label>
            <caption>
              <p>Descriptive statistics for the variables of the <italic>TemperatureCold</italic> models.</p>
            </caption>
            <table>
              <tbody>
                <tr>
                  <th rowspan="1" colspan="1">Variables</th>
                  <th rowspan="1" colspan="1">Obs.</th>
                  <th rowspan="1" colspan="1">Mean</th>
                  <th rowspan="1" colspan="1">Std. dev.</th>
                  <th rowspan="1" colspan="1">Min</th>
                  <th rowspan="1" colspan="1">Max</th>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">2020</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">
                    <italic>TemperatureCold</italic>
                  </td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.286</td>
                  <td rowspan="1" colspan="1">0.456</td>
                  <td rowspan="1" colspan="1">0</td>
                  <td rowspan="1" colspan="1">1</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">59.457</td>
                  <td rowspan="1" colspan="1">18.935</td>
                  <td rowspan="1" colspan="1">19.262</td>
                  <td rowspan="1" colspan="1">99.161</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">30.847</td>
                  <td rowspan="1" colspan="1">15.730</td>
                  <td rowspan="1" colspan="1">4.849</td>
                  <td rowspan="1" colspan="1">68.370</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">60.614</td>
                  <td rowspan="1" colspan="1">20.657</td>
                  <td rowspan="1" colspan="1">22.167</td>
                  <td rowspan="1" colspan="1">101.708</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">58.206</td>
                  <td rowspan="1" colspan="1">20.286</td>
                  <td rowspan="1" colspan="1">18.102</td>
                  <td rowspan="1" colspan="1">99.824</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">2019</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">
                    <italic>TemperatureCold</italic>
                  </td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">0.291</td>
                  <td rowspan="1" colspan="1">0.458</td>
                  <td rowspan="1" colspan="1">0</td>
                  <td rowspan="1" colspan="1">1</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>OpEx2019</italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">60.702</td>
                  <td rowspan="1" colspan="1">19.328</td>
                  <td rowspan="1" colspan="1">19.260</td>
                  <td rowspan="1" colspan="1">99.868</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>DD&amp;A2019</italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">28.335</td>
                  <td rowspan="1" colspan="1">14.754</td>
                  <td rowspan="1" colspan="1">4.502</td>
                  <td rowspan="1" colspan="1">57.675</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic>PP&amp;E2019</italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">58.425</td>
                  <td rowspan="1" colspan="1">20.199</td>
                  <td rowspan="1" colspan="1">20.277</td>
                  <td rowspan="1" colspan="1">93.949</td>
                </tr>
              </tbody>
            </table>
            <table-wrap-foot>
              <fn>
                <p><italic>Source</italic>: Author’s calculations.</p>
              </fn>
            </table-wrap-foot>
          </table-wrap>
          <p>The constructed model uses binary regression (binreg) with <italic>TemperatureCold</italic> = 1 as the event. A step-by-step change in the set of predictors (squared natural logarithms) is used to increase the contrast of the estimates.</p>
          <p>Testing with a systematic reduction in the set of regressors confirms the validity of the initial assumptions (Table <xref ref-type="table" rid="T4">4</xref>). The presence of the <italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln<sup>2</sup> variable in the predictor set neutralizes the relationship between the <abbrev xlink:title="fixed assets">FA</abbrev> cost indicator (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>) and the temperature factor (<italic>BinReg</italic>1). After excluding capital from the regression equation, the quality of the model increased, and the coefficients for all predictors became statistically significant (<italic>BinReg</italic>2). Therefore, the capital indicator was immediately excluded from the predictor set in the regressions on the 2019 data.</p>
          <table-wrap id="T4" position="float" orientation="portrait">
            <label>Table 4</label>
            <caption>
              <p>Summary indicators of preliminary regressions <italic>TemperatureCold</italic> = 1.</p>
            </caption>
            <table>
              <tbody>
                <tr>
                  <td rowspan="1" colspan="1">Base</td>
                  <td rowspan="1" colspan="2">2020</td>
                  <td rowspan="3" colspan="1"/>
                  <td rowspan="1" colspan="5">2019</td>
                  <td rowspan="3" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">
                    <italic>TemperatureCold</italic>
                  </td>
                  <td rowspan="1" colspan="2"><italic>BinReg</italic>1</td>
                  <td rowspan="1" colspan="2"><italic>BinReg</italic>2</td>
                  <td rowspan="2" colspan="1"/>
                  <td rowspan="1" colspan="2">
                    <italic>BinReg2019</italic>
                  </td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Scale</td>
                  <td rowspan="1" colspan="1">Odds ratio</td>
                  <td rowspan="1" colspan="1">Coef.</td>
                  <td rowspan="1" colspan="1">Odds ratio</td>
                  <td rowspan="1" colspan="1">Coef.</td>
                  <td rowspan="1" colspan="1">Odds ratio</td>
                  <td rowspan="1" colspan="1">Coef.</td>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">0.920**</td>
                  <td rowspan="1" colspan="1">−0.083**</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.927*</td>
                  <td rowspan="1" colspan="1">−0.076*</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.929**</td>
                  <td rowspan="1" colspan="1">−0.073**</td>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">0.851*</td>
                  <td rowspan="1" colspan="1">−0.161*</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.857*</td>
                  <td rowspan="1" colspan="1">−0.155*</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.877*</td>
                  <td rowspan="1" colspan="1">−0.131*</td>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">1.097</td>
                  <td rowspan="1" colspan="1">0.092</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">1.153**</td>
                  <td rowspan="1" colspan="1">0.142**</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">1.136**</td>
                  <td rowspan="1" colspan="1">0.128**</td>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1"><italic><abbrev xlink:title="shareholders’ equity">SE</abbrev></italic>ln<sup>2</sup></td>
                  <td rowspan="1" colspan="1">1.064</td>
                  <td rowspan="1" colspan="1">0.062</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">const</td>
                  <td rowspan="1" colspan="1">0.510</td>
                  <td rowspan="1" colspan="1">−0.674</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.519</td>
                  <td rowspan="1" colspan="1">−0.655</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">0.586</td>
                  <td rowspan="1" colspan="1">−0.535</td>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">df</td>
                  <td rowspan="1" colspan="1">50</td>
                  <td rowspan="1" colspan="1">51</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">51</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
                <tr>
                  <td rowspan="1" colspan="1">Obs.</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1">55</td>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                  <td rowspan="1" colspan="1"/>
                </tr>
              </tbody>
            </table>
            <table-wrap-foot>
              <fn>
                <p><italic>Note</italic>: * <italic>p</italic> &lt; 0.1, ** <italic>p</italic> &lt; 0.05, *** <italic>p</italic> &lt; 0.01. <italic> Source</italic>: Author’s calculations.</p>
              </fn>
            </table-wrap-foot>
          </table-wrap>
          <p>The odds ratio for <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup> is positive in the models with the adjusted predictor set based on 2020. This outcome indicates that, for a one-unit increase in the predictor, the odds of severe temperatures increase by about 15% (<italic>OR</italic> = 1.153; <italic>P</italic> &gt; |<italic>z</italic>| = 0.013; coef = 0.142). The odds ratios in the <italic>BinReg</italic>2 model for <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> (<italic>OR</italic> = 0.927) and <italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup> (<italic>OR</italic> = 0.857) indicate that the odds of severe temperatures decrease as these variables increase by one unit, holding the remaining variables constant. That is, increasing <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> by one unit in the 2020-based models is associated with a ~7% decrease in the odds of severe temperature conditions (coef = −0.076). A similar one-unit increase in <italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup> reduces the odds by about 15% (coef = −0.155).</p>
          <p>These trends also occur in the models with an adjusted predictor set based on 2019 (<italic>BinReg2019</italic>), confirming the stability of the identified effect under different economic conditions. Nevertheless, given that depreciation amounts are aggregated within operating expenses, it is advisable to reduce the number of predictors for <italic>TemperatureCold</italic> to two, reflecting normalized operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup>) and <abbrev xlink:title="fixed assets">FA</abbrev> cost (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>). As a result, an optimal model (<italic>BinRegOptimDM</italic>) was obtained for the basic testing.</p>
        </sec>
      </sec>
    </sec>
    <sec sec-type="5. Results of the basic testing" id="sec14">
      <title>5. Results of the basic testing</title>
      <sec sec-type="5.1. Results of constructing models of the cost of fixed assets (PP&amp;Eln)" id="sec15">
        <title>
          <italic>5.1. Results of constructing models of the cost of fixed assets (PP&amp;Eln)</italic>
        </title>
        <p>The <abbrev xlink:title="ordinary least squares">OLS</abbrev> regression models with <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln as the dependent variable showed satisfactory results (Table <xref ref-type="table" rid="T5">5</xref>). In all <abbrev xlink:title="ordinary least squares">OLS</abbrev> models, the coefficients of determination meet the study’s requirements (<italic>R</italic>-sq ≥ 0.7). Other specification indicators of the constructed regressions also reflect compliance with reliability and quality requirements.</p>
        <table-wrap id="T5" position="float" orientation="portrait">
          <label>Table 5</label>
          <caption>
            <p>Summary indicators of regressions <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln.</p>
          </caption>
          <table>
            <tbody>
              <tr>
                <td rowspan="1" colspan="1">Variable</td>
                <td rowspan="1" colspan="1">2020</td>
                <td rowspan="1" colspan="1">2019</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">
                  <italic><abbrev xlink:title="ordinary least squares">OLS</abbrev> OptimDM</italic>
                </td>
                <td rowspan="1" colspan="1">
                  <italic><abbrev xlink:title="ordinary least squares">OLS</abbrev> OptimUM</italic>
                </td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln</td>
                <td rowspan="1" colspan="1">0.952***</td>
                <td rowspan="1" colspan="1"/>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic>Temperature3 =</italic> 1</td>
                <td rowspan="1" colspan="1">0.154</td>
                <td rowspan="1" colspan="1">0.262</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic>Temperature3 =</italic> 2</td>
                <td rowspan="1" colspan="1">base</td>
                <td rowspan="1" colspan="1">base</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic>Temperature3 =</italic> 3</td>
                <td rowspan="1" colspan="1">0.574*</td>
                <td rowspan="1" colspan="1">0.626**</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic>OpEx2019</italic>ln</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">0.912***</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">const</td>
                <td rowspan="1" colspan="1">0.18</td>
                <td rowspan="1" colspan="1">0.204</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">Obs.</td>
                <td rowspan="1" colspan="1">55</td>
                <td rowspan="1" colspan="1">55</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">aic</td>
                <td rowspan="1" colspan="1">132.255</td>
                <td rowspan="1" colspan="1">134.099</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">bic</td>
                <td rowspan="1" colspan="1">148.284</td>
                <td rowspan="1" colspan="1">142.128</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">rank</td>
                <td rowspan="1" colspan="1">4</td>
                <td rowspan="1" colspan="1">4</td>
              </tr>
            </tbody>
          </table>
          <table-wrap-foot>
            <fn>
              <p><italic>Note</italic>: * <italic>p</italic> &lt; 0.l, ** <italic>p</italic> &lt; 0.05, *** <italic>p</italic> &lt; 0.01. <italic> Source</italic>: Author’s calculations.</p>
            </fn>
          </table-wrap-foot>
        </table-wrap>
      </sec>
      <sec sec-type="5.1.1. Results of constructing the basic models (PP&amp;Eln)" id="sec16">
        <title>
          <italic>5.1.1. Results of constructing the basic models (PP&amp;Eln)</italic>
        </title>
        <p>Based on the results of the preliminary <abbrev xlink:title="ordinary least squares">OLS</abbrev> models, with step-by-step exclusion of variables, an optimal downturn-period model (<italic><abbrev xlink:title="optimal downturn-period model">OLSOptimDM</abbrev></italic>) was obtained according to the conceptual assumptions. Its regressors are operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln) and severe temperatures (<italic>Temperature3</italic> = 3). The results for <italic><abbrev xlink:title="optimal downturn-period model">OLSOptimDM</abbrev></italic> reflect a statistically significant positive relationship between <abbrev xlink:title="fixed assets">FA</abbrev> cost and <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln and <italic>Temperature3</italic> = 3. Severe temperatures (<italic>Temperature3</italic> = 3), compared with moderate temperatures (<italic>Temperature3</italic> = 2; baseline), statistically significantly contribute to an increase in <abbrev xlink:title="fixed assets">FA</abbrev> cost (<italic>β</italic> = 0.574; <italic>p</italic> &lt; 0.1).</p>
        <p>We also constructed a model with fixed effects (robust). Based on bootstrap results for 150 replications, the robustness of the model and the significance of the influence of the selected regressors on the dependent variable were confirmed for the 2019 upturn-period model (<italic>OLSOptimUM</italic>). The constructed and tested models passed the post-estimation regression tests. They did not reveal statistically significant evidence of specification errors, heteroscedasticity, multicollinearity, abnormal skewness, or excess kurtosis. Thus, the results of constructing <abbrev xlink:title="ordinary least squares">OLS</abbrev> regressions for <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln with a systematic reduction in the set of independent variables allowed us to:</p>
        <p>(a) Reduce the number of predictors to two significant ones — the operating expenses indicator and the severe temperature conditions indicator (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln and <italic>Temperature3</italic> = 3);</p>
        <p>(b) Confirm the correctness of the conceptual assumptions: severe temperatures (<italic>Temperature3</italic> = 3) increase <abbrev xlink:title="fixed assets">FA</abbrev> cost relative to moderate temperatures in the operating areas of sectoral companies.</p>
      </sec>
      <sec sec-type="5.2. Evaluation of the results of regressions for the severe temperature indicator (TemperatureCold = 1)" id="sec17">
        <title>
          <italic>5.2. Evaluation of the results of regressions for the severe temperature indicator (TemperatureCold = 1)</italic>
        </title>
        <p>When expressing predictors as squared natural logarithms, which increases the contrast of the estimates, the specification quality of the regressions is higher. The constructed models were tested for heteroscedasticity, omitted variables, and specification errors (Table <xref ref-type="table" rid="T6">6</xref>).</p>
        <table-wrap id="T6" position="float" orientation="portrait">
          <label>Table 6</label>
          <caption>
            <p>Summary indicators of regressions <italic>TemperatureCold</italic> = 1.</p>
          </caption>
          <table>
            <tbody>
              <tr>
                <td rowspan="1" colspan="1">Base</td>
                <td rowspan="1" colspan="2">2020</td>
                <td rowspan="3" colspan="1"/>
                <td rowspan="1" colspan="2">2019</td>
                <td rowspan="3" colspan="1"/>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">
                  <italic>TemperatureCold</italic>
                </td>
                <td rowspan="1" colspan="2">
                  <italic>BinRegOptimDM</italic>
                </td>
                <td rowspan="1" colspan="2">
                  <italic>BinRegOptimUM</italic>
                </td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">Scale</td>
                <td rowspan="1" colspan="1">Odds ratio</td>
                <td rowspan="1" colspan="1">Coef.</td>
                <td rowspan="1" colspan="1">Odds ratio</td>
                <td rowspan="1" colspan="1">Coef.</td>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup></td>
                <td rowspan="1" colspan="1">0.904***</td>
                <td rowspan="1" colspan="1">−0.101*</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">0.916**</td>
                <td rowspan="1" colspan="1">−0.087**</td>
                <td rowspan="1" colspan="1"/>
              </tr>
              <tr>
                <td rowspan="1" colspan="1"><italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup></td>
                <td rowspan="1" colspan="1">1.063*</td>
                <td rowspan="1" colspan="1">0.061*</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">1.056*</td>
                <td rowspan="1" colspan="1">0.055*</td>
                <td rowspan="1" colspan="1"/>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">const</td>
                <td rowspan="1" colspan="1">3.314</td>
                <td rowspan="1" colspan="1">1.198</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">2.751</td>
                <td rowspan="1" colspan="1">1.012</td>
                <td rowspan="1" colspan="1"/>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">df</td>
                <td rowspan="1" colspan="1">52</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">51</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1"/>
              </tr>
              <tr>
                <td rowspan="1" colspan="1">Obs.</td>
                <td rowspan="1" colspan="1">55</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1">55</td>
                <td rowspan="1" colspan="1"/>
                <td rowspan="1" colspan="1"/>
              </tr>
            </tbody>
          </table>
          <table-wrap-foot>
            <fn>
              <p><italic>Note</italic>: * <italic>p</italic> &lt; 0.l, ** <italic>p</italic> &lt; 0.05, *** <italic>p</italic> &lt; 0.01. <italic> Source</italic>: Author’s calculations.</p>
            </fn>
          </table-wrap-foot>
        </table-wrap>
        <p>In the optimal model based on 2020, the odds ratio for <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup> is greater than 1, indicating that a one-unit increase in the predictor is associated with an approximately 6% increase in the odds of severe temperatures (<italic>OR</italic> = 1.063; <italic>P</italic> &gt;|<italic>z</italic>| = 0.059). The coefficient for <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> (<italic>OR</italic> = 0.904) indicates that the odds of severe temperatures decrease as <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> increases by one unit, holding all other variables constant. That is, increasing <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> in the 2020-based optimal model is associated with a 10% decrease in the odds of severe temperature conditions for the company (coef = −0.101). The same patterns occur in the 2019-based optimal model (<italic>BinRegOptimUM</italic>), confirming the stability of the identified effect under different economic conditions.</p>
      </sec>
      <sec sec-type="5.3. Results of the assessment of predicted probabilities of severe temperatures for different ISRI levels" id="sec18">
        <title>
          <italic>5.3. Results of the assessment of predicted probabilities of severe temperatures for different <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> levels</italic>
        </title>
        <p>The identified patterns in the change in the odds of severe temperature conditions are confirmed by calculating marginal effects for each level of <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev> values­: <abbrev xlink:title="fixed assets">FA</abbrev> cost, operating expenses, and depreciation. Thus, the highest predicted ­probabilities of <italic>TemperatureCold</italic> (0.974) for nine levels of the composite variable (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup>#<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>) were obtained for level 3 (maximum <abbrev xlink:title="fixed assets">FA</abbrev> cost (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup> = 90) and minimum operating expenses (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup> = 30; Fig. <xref ref-type="fig" rid="F1">1</xref>, blue line).</p>
        <fig id="F1">
          <object-id content-type="arpha">99C07948-25B7-58F5-AADE-9C52DCFC3083</object-id>
          <label>Fig. 1.</label>
          <caption>
            <p>Forecast average probabilities of severe temperatures by levels of the composite variable <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup>#<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>.</p>
            <p><italic>Source</italic>: Author’s calculations.</p>
          </caption>
          <graphic xlink:href="rujec-12-e168448-g001.jpg" id="oo_1702319.jpg">
            <uri content-type="original_file">https://binary.pensoft.net/fig/1702319</uri>
          </graphic>
        </fig>
        <p>Similar constructions for the composite variable <italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup>#<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup> indi­cate statistically significant results for nine levels out of the 18 preset ones. The highest­ probabilities occur at levels 3, 6, and 9 at the maximum <abbrev xlink:title="fixed assets">FA</abbrev> cost (90) and three minimum allocated depreciation levels (10, 20, and 30, respectively). Margin3 = 0.994; Margin6 = 0.973; Margin9 = 0.903 (Fig. <xref ref-type="fig" rid="F2">2</xref>).</p>
        <fig id="F2">
          <object-id content-type="arpha">6C9EFB95-D88D-5E29-BDBF-F5445DEED238</object-id>
          <label>Fig. 2.</label>
          <caption>
            <p>Forecast average probabilities of severe temperatures by levels of the composite variable <italic><abbrev xlink:title="depreciation, depletion, and amortization">DD&amp;A</abbrev></italic>ln<sup>2</sup>#<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>.</p>
            <p><italic>Source</italic>: Author’s calculations.</p>
          </caption>
          <graphic xlink:href="rujec-12-e168448-g002.jpg" id="oo_1702320.jpg">
            <uri content-type="original_file">https://binary.pensoft.net/fig/1702320</uri>
          </graphic>
        </fig>
        <p>Marginal effects were calculated for <abbrev xlink:title="fixed assets">FA</abbrev> cost and operating expenses with an increased number of preset levels (to enhance the analytical detail of testing) to clarify the distribution boundaries of the odds of severe temperatures given the allocated change in isolated ISRIs.</p>
        <p>The estimated odds of severe temperatures for companies increase with <abbrev xlink:title="fixed assets">FA</abbrev> cost and decrease as operating expenses increase (Fig. <xref ref-type="fig" rid="F3">3</xref>). Specifically, the lowest­ odds (0.033) are obtained for the lowest level of <italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>. At the maximum level (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup> = 100), the highest odds value (0.86) is obtained. Conversely, for the lowest level of <italic>OpEx2020</italic>ln<sup>2</sup> (<italic>OpEx2020</italic>ln<sup>2</sup> = 20), the highest odds (0.795) are obtained. As the preset level of operating expenses increases, the odds decrease to 0.083 at level 7 (<italic>OpEx2020</italic>ln<sup>2</sup> = 80) (<italic>P</italic> &gt; |<italic>z</italic>| = 0.077).</p>
        <fig id="F3">
          <object-id content-type="arpha">54E16C7E-BDD0-556C-899C-1324B3AE9361</object-id>
          <label>Fig. 3.</label>
          <caption>
            <p>Predicted probabilities (<italic>TemperatureCold</italic> = 1) by <abbrev xlink:title="fixed assets">FA</abbrev> cost levels (<italic><abbrev xlink:title="property, plant, and equipment, Net">PP&amp;E</abbrev></italic>ln<sup>2</sup>) and operating-expense levels (<italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic>ln<sup>2</sup>).</p>
            <p><italic>Source</italic>: Author’s calculations.</p>
          </caption>
          <graphic xlink:href="rujec-12-e168448-g003.jpg" id="oo_1702321.jpg">
            <uri content-type="original_file">https://binary.pensoft.net/fig/1702321</uri>
          </graphic>
        </fig>
        <p>The identified characteristics of the relationship between <abbrev xlink:title="fixed assets">FA</abbrev> cost and operating expenses remain stable, even when considering the isolated influence of each indicator across all predefined levels of the analyzed variables.</p>
      </sec>
    </sec>
    <sec sec-type="6. Discussion" id="sec19">
      <title>6. Discussion</title>
      <p>Our study’s results support the following conclusions.</p>
      <p>Severe temperatures are an important factor influencing the structure of physical and financial business indicators. Operating under such conditions increases companies’ financial investments in fixed assets (<abbrev xlink:title="fixed assets">FA</abbrev>), reflected in higher <abbrev xlink:title="fixed assets">FA</abbrev> values reported in corporate financial statements.</p>
      <p>The shift in predicted probabilities toward lower operating expenses and annual depreciation values (based on the estimated relationship between the severe temperature regime and the selected <abbrev xlink:title="information-significant reporting indicators">ISRI</abbrev>) supports several key conclusions. First, this shift reflects a structural change in corporate costs. An increase in capital investments accompanied by a relative decrease in operating expenses confirms the validity of the second part of the research hypothesis. Second, <italic><abbrev xlink:title="capital investments">CapEx</abbrev></italic> typically exceeds <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic> by several multiples, resulting in a persistently elevated financial burden on businesses operating in severe temperature zones. This situation creates an intra-sectoral imbalance in the objective assessment and reporting of business efforts toward achieving <abbrev xlink:title="Sustainable Development Goals">SDGs</abbrev>. It also affects the comparability of reported financial indicators for companies operating under different climatic conditions. Third, the relationship between operating expenses and severe temperatures may also be indirectly influenced by other contextual factors, such as dividend policies, tax regimes, government support measures, and corporate strategies for maximizing profitability. Nevertheless, the study’s results provide strong evidence of a systematic influence of temperature on the structure of corporate assets and financial flows.</p>
      <p>The results outline a broader problem of increasing financial pressure on companies primarily engaged in production activities, specifically hydrocarbon extraction, processing, and primary transportation. Many of these companies are subject to the most significant impact of severe temperature conditions (the J-factor). Without a well-developed and tested methodology for incorporating such climate-related risks into financial reporting, these companies will likely be required to allocate additional reserves. This allocation may, in turn, adversely affect key financial ratios and reduce their investment attractiveness compared to other market participants. Addressing these issues may require revising the coefficients, standards, and reserve thresholds currently used in reporting. Introducing progressive scales that account for the disproportionate burden faced by “producers­,” as compared to “intermediaries,” in the global hydrocarbon market could help mitigate this form of systemic “social injustice.”</p>
      <p>In corporate reporting, the International Accounting Standards Board has expanded initiatives to improve the accounting and disclosure of climate risks, including temperature risk; however, these initiatives are lagging.<xref ref-type="fn" rid="en6">6</xref> This situation underscores the need for sector-specific standardization initiatives at the BRICS+ level, particularly in close cooperation with OPEC+, as many energy-sector players are members of these associations. A critical issue in relations among the members of these associations, especially OPEC+, is the consideration of J-terms in decision-making. Comparable infrastructure (that is, <abbrev xlink:title="fixed assets">FA</abbrev>) in severe temperature conditions is substantially more expensive than similar projects in more temperate regions. For example, some experts estimate the cost of the Eastern Siberia pipeline<sup><xref ref-type="fn" rid="en7">7</xref></sup> to be a “­colossal” $16 billion. The Coastal GasLink pipeline in Canada cost $14.5 billion, with a 29% cost overrun attributed primarily to challenges in securing qualified labor. Similarly, the cost of the expanded Trans Mountain pipeline, commissioned in early 2024, is estimated at CAD 33.4 billion (approximately $24 billion).</p>
      <p>In contrast, according to the Global Energy Monitor, the estimated cost of building a pipeline of comparable length (about 1,100 km) in Argentina is $4.1 billion (<xref ref-type="bibr" rid="B36">Langenbrunner, 2023</xref>, p. 11). The influence of the J-factor on production costs in the energy sector creates structural disparities that may lead to conflict and unfair competition. Production costs in countries with warm or hot climates are often significantly lower than those in colder regions. In such harsh conditions, cost capitalization dominates operating expenses, unlike in milder environments. This imbalance in accounting strategies can create unfair practices and financial losses for bona fide investors. Therefore, this study’s findings highlight a global issue: the urgent need for cooperative solutions that address the financial burdens imposed on companies forced to adapt to severe climatic conditions.</p>
      <p>The global nature of this problem necessitates a separate study to explore approaches for its effective resolution. The initial conditions for developing a solution are as follows. First, the interests of consumers and producers must be distinguished. Second, all stakeholders must understand that the impact of climate on the economy is objectively real and varies significantly. Third, the super-marginal nature of energy resource production under favorable conditions predetermines a significant competitive advantage for residents of certain economies compared to industry competitors with high production thresholds. Coordinated solutions that consider the interests of all industry participants are required (OPEC+ is a clear example of international coordination).</p>
      <p>Conceptually, the solution’s elements should include (a) global industry regulation measures, (b) easing the financial burden at the corporate level, and (c) increasing target companies’ investment attractiveness.</p>
      <p>In this context, global industry regulation requires that J-terms be considered in the discussions and decisions of OPEC+, the IEA, BRICS+, and the G7. The WTO could serve as a logical communication channel, given the desire of many G20 economies to revive its functionality.</p>
      <p>A framework for business — government relations focused on the accurate assessment and allocation of responsibility for the economic consequences of climate and environmental risks affecting businesses in extreme conditions could be a useful solution. Moreover, a global industry rating for the geoclimatic gradation of production could be used to increase transparency at the international level. This unified rating would serve as the basis for industry benchmarking and would allow for the identification and uniform assessment of the industry’s cost of J-term variability. Such data can help adjust climate and environmental risk assessment models. Companies should conduct climate risk assessments using standard industry methods. Expanding the use of agent-based models appears beneficial for improving the quality of modeling.</p>
      <p>At the national level, solutions that ensure a timely response to challenges are appropriate. The development of a system of indicators to identify elevated financial risks in mining and production companies could be a key element of such a system. The excess of <italic><abbrev xlink:title="capital investments">CapEx</abbrev></italic> over <italic><abbrev xlink:title="operating expenses for the reporting year">OpEx</abbrev></italic> relative to the estimated J-factor impact, based on a unified benchmark, could serve as a key indicator. This approach would help minimize environmental risks associated with abandoned real estate, structures, and equipment, similar to the abandonment of Arctic development assets following the collapse of the USSR. Comparable cases have been observed in the Canadian North and Alaska (<xref ref-type="bibr" rid="B34">Kirdyanov et al., 2020</xref>).</p>
      <p>Implementing the proposed measures may require amendments to IASB and ISSB standards. The estimated scope of the required additions and clarifications covers at least three standards. Thus, it would be appropriate to supplement IFRS 1, “First-time Adoption of International Financial Reporting Standards,”<sup><xref ref-type="fn" rid="en8">8</xref></sup> with a requirement for mandatory disclosure of corporate J-factor index amounts based on global benchmarking, with separate line items in the statements of financial position and comprehensive income. Furthermore, amending IAS 37, “Provisions, Contingent Liabilities, and Contingent Assets,”<sup><xref ref-type="fn" rid="en9">9</xref></sup> and IAS 12, “Income Taxes,”<sup><xref ref-type="fn" rid="en10">10</xref></sup> regarding the procedure for recognizing provisions for estimated liabilities<sup><xref ref-type="fn" rid="en11">11</xref></sup> in the tax base could ease companies’ tax burden.</p>
      <p>Following the guidelines of the Basel Committee on Banking Supervision, the financial burden on target companies could be eased by introducing reduced risk ratios for industry manufacturers and increased risk ratios for intermediaries when calculating the capital adequacy ratio of credit institutions.<sup><xref ref-type="fn" rid="en12">12</xref></sup> This step, along with preferential interest rates, could significantly improve companies’ access to financing and reduce their debt burden. Such measures could increase companies’ investment attractiveness, and they can be supported at the national level by expanding green financing practices and tax incentives for investments in target companies.</p>
      <p>The measures described should be considered conceptual and potentially feasible, requiring consideration of the national economic situations of relevant companies. Although they are not comprehensive recommendations, their practical utility lies in defining the contours of possible systemic management decisions.</p>
      <p>The results are based on a sector-specific sample. As such, the findings are open to debate and may be confirmed or challenged through research using different sample characteristics or alternative methodologies. Nonetheless, the risk of a Type I error appears to be minimal.</p>
    </sec>
    <sec sec-type="7. Conclusion" id="sec20">
      <title>7. Conclusion</title>
      <p>Our study’s results confirm the hypothesis regarding the relationship between the high cost of fixed assets (<abbrev xlink:title="fixed assets">FA</abbrev>) and severe ambient temperatures in the areas where energy-sector companies primarily operate. Severe temperature conditions are a significant adaptation factor and contribute to changes in the structure of assets and business financial flows, specifically an increase in <abbrev xlink:title="fixed assets">FA</abbrev> costs with a relative decrease in operating expenses and depreciation. This pattern is not typical for companies operating under moderate or favorable temperature conditions.</p>
      <p>The results highlight a broader issue of intra-sectoral imbalance in assessing company efforts to achieve <abbrev xlink:title="Sustainable Development Goals">SDGs</abbrev>. They also highlight the limited comparability of financial reporting indicators between companies operating in harsh climates and those in more temperate regions. The analysis revealed a persistently ele­vated financial burden borne by companies conducting production activities under severe temperature conditions. This problem requires urgent resolution at the sectoral level on a global scale and is particularly important given the widespread presence of the J-factor among many industry players and its global implications.</p>
      <p>These results can provide a foundation for further research into external environmental factors. The findings can also support the development of a well-substantiated position for protecting national business interests in global markets. Additionally, they provide a basis for creating sector-specific comparison algorithms that promote a fair assessment of corporate efforts to achieve <abbrev xlink:title="Sustainable Development Goals">SDGs</abbrev> while helping mitigate the J-factor’s negative impact at the company level.</p>
    </sec>
  </body>
  <back>
    <ack>
      <title>Acknowledgments</title>
      <p>The author expresses sincere gratitude to the attendees of the Lomonosov Readings in April 2025 and the 52nd EBES conference in Istanbul in July 2025 for their insightful comments. The author also thanks Professor Viktor Suyts for his continuous support and the companies that provided financial statements and valuable comments for this study.
</p>
    </ack>
    <ref-list>
      <title>References</title>
      <ref id="B1">
        <mixed-citation>Acharya, V., Bhardwaj, A., &amp; Tomunen, T. (2023). Do firms mitigate climate impact on employment? Evidence from U.S. heat shocks. <italic>NBER Working Paper</italic>, No. 31967. <ext-link xlink:href="10.3386/w31967" ext-link-type="doi">https://doi.org/10.3386/w31967</ext-link></mixed-citation>
      </ref>
      <ref id="B2">
        <mixed-citation>Addoum, J., Ng, D., &amp; Ortiz-Bobea, A. (2020). Temperature shocks and establishment sales. <italic>The Review of Financial Studies, 33</italic>(3), 1331–1366. <ext-link xlink:href="10.1093/rfs/hhz126" ext-link-type="doi">https://doi.org/10.1093/rfs/hhz126</ext-link></mixed-citation>
      </ref>
      <ref id="B3">
        <mixed-citation>Addoum, J., Ng, D., &amp; Ortiz-Bobea, A. (2023). Temperature shocks and industry earnings news. <italic>Journal of Financial Economics, 150</italic>(1), 1–45. <ext-link xlink:href="10.1016/j.jfineco.2023.07.002" ext-link-type="doi">https://doi.org/10.1016/j.jfineco.2023.07.002</ext-link></mixed-citation>
      </ref>
      <ref id="B4">
        <mixed-citation>Al-Shatnawi, Z., Hachem-Vermette, C., Lacasse, M., &amp; Ziaeemehr, B. (2024). Advances in cold-climate-responsive building envelope design: A comprehensive review. <italic>Buildings, 14</italic>(11), 3486. <ext-link xlink:href="10.3390/buildings14113486" ext-link-type="doi">https://doi.org/10.3390/buildings14113486</ext-link></mixed-citation>
      </ref>
      <ref id="B5">
        <mixed-citation>Barreca, A. I. (2012). Climate change, humidity, and mortality in the United States. <italic>Journal of Environmental Economics and Management, 63</italic>(1), 19–34. <ext-link xlink:href="10.1016/j.jeem.2011.07.004" ext-link-type="doi">https://doi.org/10.1016/j.jeem.2011.07.004</ext-link></mixed-citation>
      </ref>
      <ref id="B6">
        <mixed-citation>Bates, R. E., &amp; Bilello, M. A. (1966). Defining the cold regions of the northern Hemisphere. <italic>Cold Regions Research &amp; Engineering Laboratory Technical Report</italic>, No. 178.</mixed-citation>
      </ref>
      <ref id="B7">
        <mixed-citation>Bonakdar, F., Sasic Kalagasidis, A., &amp; Mahapatra, K. (2017). The implications of climate zones on the cost-optimal level and cost-effectiveness of building envelope energy renovation and space heat demand reduction. <italic>Buildings, 7</italic>(2), 39. <ext-link xlink:href="10.3390/buildings7020039" ext-link-type="doi">https://doi.org/10.3390/buildings7020039</ext-link></mixed-citation>
      </ref>
      <ref id="B8">
        <mixed-citation>Brzezinska, I., &amp; Jasper, P. (2024). The negative effect of temperature variability on household wealth in low- and middle-income countries. <italic>Economics of Disasters and Climate Change, 8</italic>(3), 417–452. <ext-link xlink:href="10.1007/s41885-024-00160-6" ext-link-type="doi">https://doi.org/10.1007/s41885-024-00160-6</ext-link></mixed-citation>
      </ref>
      <ref id="B9">
        <mixed-citation>Burke, M., Hsiang, S., &amp; Miguel, E. (2015). Global nonlinear effect of temperature on economic production. <italic>Nature, 527</italic>(7577), 235–239. <ext-link xlink:href="10.1038/nature15725" ext-link-type="doi">https://doi.org/10.1038/nature15725</ext-link></mixed-citation>
      </ref>
      <ref id="B10">
        <mixed-citation>Butt, J., &amp; Abdelaziz, D. K. A. (2025). Sustainable governance in the digital age: E-government innovations for climate action. <italic>Journal of Recycling Economy &amp; Sustainability Policy, 4</italic>(1), 54–69.</mixed-citation>
      </ref>
      <ref id="B11">
        <mixed-citation>Butt, J., &amp; Kousar, F. (2024). Harnessing offshore wind for sustainable economic growth in Nordic countries: Legal innovations, economic opportunities, SDG and policy integration. <italic>Acta Universitatis Danubius. Œconomica, 20</italic>(2), 123–145.</mixed-citation>
      </ref>
      <ref id="B12">
        <mixed-citation>Cai, X., Lu, Y., &amp; Wang, J. (2018). The impact of temperature on manufacturing worker productivity: Evidence from personnel data. <italic>Journal of Comparative Economics, 46</italic>(4), 889–905. <ext-link xlink:href="10.1016/j.jce.2018.06.003" ext-link-type="doi">https://doi.org/10.1016/j.jce.2018.06.003</ext-link></mixed-citation>
      </ref>
      <ref id="B13">
        <mixed-citation>Callahan, C. W., &amp; Mankin, J. S. (2022). National attribution of historical climate damages. <italic>Climatic Change, 172</italic>(3), 40. <ext-link xlink:href="10.1007/s10584-022-03387-y" ext-link-type="doi">https://doi.org/10.1007/s10584-022-03387-y</ext-link></mixed-citation>
      </ref>
      <ref id="B14">
        <mixed-citation>Chang, J. J., Wei, Y.-M., Yuan, X.-C., Liao, H., &amp; Yu, B.-Y. (2020). The nonlinear impacts of global warming on regional economic production: An empirical analysis from China. <italic>Weather, Climate, and Society, 12</italic>(4), 759–769. <ext-link xlink:href="10.1175/WCAS-D-20-0029.1" ext-link-type="doi">https://doi.org/10.1175/WCAS-D-20-0029.1</ext-link></mixed-citation>
      </ref>
      <ref id="B15">
        <mixed-citation>Churchill, S. A., Trinh, T. A., &amp; Danquah, M. (2023). Temperature, climate change, and household financial behavior: Evidence from Viet Nam. <italic>WIDER Working Paper</italic>, No. 2023/95. Helsinki: UNU-WIDER. <ext-link xlink:href="10.35188/UNU-WIDER/2023/403-8" ext-link-type="doi">https://doi.org/10.35188/UNU-WIDER/2023/403-8</ext-link></mixed-citation>
      </ref>
      <ref id="B16">
        <mixed-citation>Coonan, A. (2023). Heat waves scorch margins, employees, infrastructure: Business risks of extreme heat. <italic>Bradley Intelligence Report</italic>, July.</mixed-citation>
      </ref>
      <ref id="B17">
        <mixed-citation>Dahl, K., Spanger-Siegfried, E., Licker, R. et al. (2019). <italic>Killer heat in the United States: Climate choices and the future of dangerously hot days</italic>. Union of Concerned Scientists.</mixed-citation>
      </ref>
      <ref id="B18">
        <mixed-citation>Dell, M., Jones, B. F., &amp; Olken, B. A. (2009). Temperature and income: Reconciling new cross-sectional and panel estimates. <italic>American Economic Review, 99</italic>(2), 198–204. <ext-link xlink:href="10.1257/aer.99.2.198" ext-link-type="doi">https://doi.org/10.1257/aer.99.2.198</ext-link></mixed-citation>
      </ref>
      <ref id="B19">
        <mixed-citation>Dell, M., Jones, B. F., &amp; Olken, B. A. (2012). Temperature shocks and economic growth: Evidence from the last half century. <italic>American Economic Journal: Macroeconomics, 4</italic>(3), 66–95. <ext-link xlink:href="10.1257/mac.4.3.66" ext-link-type="doi">https://doi.org/10.1257/mac.4.3.66</ext-link></mixed-citation>
      </ref>
      <ref id="B20">
        <mixed-citation>Dell, M., Jones, B. F., &amp; Olken, B. A. (2014). What do we learn from the weather? The new climate-economy literature. <italic>Journal of Economic Literature, 52</italic>(3), 740–798. <ext-link xlink:href="10.1257/jel.52.3.740" ext-link-type="doi">https://doi.org/10.1257/jel.52.3.740</ext-link></mixed-citation>
      </ref>
      <ref id="B21">
        <mixed-citation>Deryugina, T., &amp; Hsiang, S. M. (2014). Does the environment still matter? Daily temperature and income in the United States. <italic>NBER Working Paper</italic>, No. 20750. <ext-link xlink:href="10.3386/w20750" ext-link-type="doi">https://doi.org/10.3386/w20750</ext-link></mixed-citation>
      </ref>
      <ref id="B22">
        <mixed-citation>Fankhauser, S., Smith, J. B., &amp; Tol, R. S. J. (1999). Weathering climate change: Some simple rules to guide adaptation decisions. <italic>Ecological Economics, 30</italic>(1), 67–78. <ext-link xlink:href="10.1016/S0921-8009(98)00117-7" ext-link-type="doi">https://doi.org/10.1016/S0921-8009(98)00117-7</ext-link></mixed-citation>
      </ref>
      <ref id="B23">
        <mixed-citation>Galikeev, I. A., Nasyrov, V. A., &amp; Nasyrov, A. M. (2015). <italic>Oil field exploitation in abnormal conditions</italic>. Izhevsk: Paratsels Print (in Russian).</mixed-citation>
      </ref>
      <ref id="B24">
        <mixed-citation>Graff Zivin, J., &amp; Neidell, M. (2014). Temperature and the allocation of time: Implications for climate change. <italic>Journal of Labor Economics, 32</italic>(1), 1–26. <ext-link xlink:href="10.1086/671766" ext-link-type="doi">https://doi.org/10.1086/671766</ext-link></mixed-citation>
      </ref>
      <ref id="B25">
        <mixed-citation>Greßer, C., Meierrieks, D., &amp; Stadelmann, D. (2020). <italic>The link between regional temperature and regional incomes: Econometric evidence with sub-national data</italic>. Paper presented at the 72<sup>nd</sup> Economic Policy Panel Meeting, October 22–23.</mixed-citation>
      </ref>
      <ref id="B26">
        <mixed-citation>Griffin, P. A., Lont, D. H., &amp; Lubberink, M. J. P. (2024). The effects of extreme high temperature spells on financial performance. <italic>British Accounting Review, 57</italic>(2), 101383. <ext-link xlink:href="10.1016/j.bar.2024.101383" ext-link-type="doi">https://doi.org/10.1016/j.bar.2024.101383</ext-link></mixed-citation>
      </ref>
      <ref id="B27">
        <mixed-citation>Gudmestad, O., &amp; Karunakaran, D. (2012). Planning for construction work in cold climate regions. In <italic>Proceedings of the 31<sup>st</sup> International Conference on Offshore Mechanics and Arctic Engineering</italic> (Vol. 6, pp. 449–455). American Society of Mechanical Engineers. <ext-link xlink:href="10.1115/OMAE2012-83301" ext-link-type="doi">https://doi.org/10.1115/OMAE2012-83301</ext-link></mixed-citation>
      </ref>
      <ref id="B28">
        <mixed-citation>Gudmestad, O. T. &amp; Markeset, T. (2015). Oil and gas operations under extreme conditions in the cold north. <italic>International Journal of Computational Methods and Experimental Measurements, 3</italic>(1), 7–12. <ext-link xlink:href="10.2495/CMEM-V3-N1-7-12" ext-link-type="doi">https://doi.org/10.2495/CMEM-V3-N1-7-12</ext-link></mixed-citation>
      </ref>
      <ref id="B29">
        <mixed-citation>Hsiang, S. (2016). Climate econometrics. <italic>Annual Review of Resource Economics, 8</italic>(1), 43–75. <ext-link xlink:href="10.1146/annurev-resource-100815-095343" ext-link-type="doi">https://doi.org/10.1146/annurev-resource-100815-095343</ext-link></mixed-citation>
      </ref>
      <ref id="B30">
        <mixed-citation>Huang, Y., Zhang, L., Li, Y. et al. (2023). Characteristics of the Northern Hemisphere cold regions changes from 1901 to 2019. <italic>Scientific Reports, 13</italic>(1), 3879. <ext-link xlink:href="10.1038/s41598-023-30263-1" ext-link-type="doi">https://doi.org/10.1038/s41598-023-30263-1</ext-link></mixed-citation>
      </ref>
      <ref id="B31">
        <mixed-citation>IFRC (2022). <italic>Extreme heat: Preparing for the heatwaves of the future</italic>. A joint publication of The United Nations Office for the Coordination of Humanitarian Affairs, The International Federation of Red Cross and Red Crescent Societies, and the Red Cross Red Crescent.</mixed-citation>
      </ref>
      <ref id="B32">
        <mixed-citation>Kalkuhl, M., &amp; Wenz, L. (2020). The impact of climate conditions on economic production: Evidence from a global panel of regions. <italic>Journal of Environmental Economics and Management, 103</italic>, 102360. <ext-link xlink:href="10.1016/j.jeem.2020.102360" ext-link-type="doi">https://doi.org/10.1016/j.jeem.2020.102360</ext-link></mixed-citation>
      </ref>
      <ref id="B33">
        <mixed-citation>King, A. D., &amp; Harrington, L. J. (2018). The inequality of climate change from 1.5 to 2 °C of global warming. <italic>Geophysical Research Letters, 45</italic>(10), 5030–5033. <ext-link xlink:href="10.1029/2018GL078430" ext-link-type="doi">https://doi.org/10.1029/2018GL078430</ext-link></mixed-citation>
      </ref>
      <ref id="B34">
        <mixed-citation>Kirdyanov, A. V., Krusic, P. J., Shishov, V. V. et al. (2020). Ecological and conceptual consequences of Arctic pollution. <italic>Ecology Letters, 23</italic>, 1827–1837. <ext-link xlink:href="10.1111/ele.13611" ext-link-type="doi">https://doi.org/10.1111/ele.13611</ext-link></mixed-citation>
      </ref>
      <ref id="B35">
        <mixed-citation>Köppen, W. (1936). Das Geographische System der Klimate. In: W. Köppen &amp; R. Geiger (Eds.), <italic>Handbuch der Klimatologie</italic> (Band I, Teil C). Berlin: Verlag von Gebrüder Borntrager (in German).</mixed-citation>
      </ref>
      <ref id="B36">
        <mixed-citation>Langenbrunner, B. (2023). Global gas pipeline expansion. <italic>Global Energy Monitor</italic>, December.</mixed-citation>
      </ref>
      <ref id="B37">
        <mixed-citation>Meierrieks, D. (2021). Weather shocks, climate change and human health. <italic>World Development, 138</italic>, 105228. <ext-link xlink:href="10.1016/j.worlddev.2020.105228" ext-link-type="doi">https://doi.org/10.1016/j.worlddev.2020.105228</ext-link></mixed-citation>
      </ref>
      <ref id="B38">
        <mixed-citation>Meierrieks, D., &amp; Stadelmann, D. (2024). Is temperature adversely related to economic development? Evidence on the short-run and the long-run links from sub-national data. <italic>Energy Economics, 136</italic>, 107758. <ext-link xlink:href="10.1016/j.eneco.2024.107758" ext-link-type="doi">https://doi.org/10.1016/j.eneco.2024.107758</ext-link></mixed-citation>
      </ref>
      <ref id="B39">
        <mixed-citation>Moyer, E. J., Woolley, M. D., Matteson, N. J., Glotter, M. J., &amp; Weisbach, D. A. (2014). Climate impacts on economic growth as drivers of uncertainty in the social cost of carbon. <italic>Journal of Legal Studies, 43</italic>(2), 401–425. <ext-link xlink:href="10.2139/ssrn.2312723" ext-link-type="doi">https://doi.org/10.2139/ssrn.2312723</ext-link></mixed-citation>
      </ref>
      <ref id="B40">
        <mixed-citation>Nguyen, D. H., &amp; Khominich, I. P. (2023). The measurement of green economic quality in the BRICS countries: Should they prioritize financing for environmental protection, economic growth, or social goals? <italic>Russian Journal of Economics, 9</italic>, 183–200. <ext-link xlink:href="10.32609/j.ruje.9.101612" ext-link-type="doi">https://doi.org/10.32609/j.ruje.9.101612</ext-link></mixed-citation>
      </ref>
      <ref id="B41">
        <mixed-citation>Otto, F. E. L., Philip, S., Kew, S., Li, S., King, A., &amp; Cullen, H. (2018). Attributing high-impact extreme events across timescales: A case study of four different types of events. <italic>Climatic Change, 149</italic>(3), 399–412. <ext-link xlink:href="10.1007/s10584-018-2258-3" ext-link-type="doi">https://doi.org/10.1007/s10584-018-2258-3</ext-link></mixed-citation>
      </ref>
      <ref id="B42">
        <mixed-citation>Pankratz, N., Bauer, R., &amp; Derwall, J. (2023). Climate change, firm performance, and investor surprises. <italic>Management Science, 69</italic>(12), 7352–7398. <ext-link xlink:href="10.1287/mnsc.2023.4685" ext-link-type="doi">https://doi.org/10.1287/mnsc.2023.4685</ext-link></mixed-citation>
      </ref>
      <ref id="B43">
        <mixed-citation>Ponticelli, J., Xu, Q., &amp; Zeume, S. (2023). Temperature, adaptation, and local industry concentration. <italic>NBER Working Paper</italic>, No. 31533. <ext-link xlink:href="10.3386/w31533" ext-link-type="doi">https://doi.org/10.3386/w31533</ext-link></mixed-citation>
      </ref>
      <ref id="B44">
        <mixed-citation>PwC (2022). <italic>Climate change reflected in financial statements, a role for companies and their auditors</italic>. PricewaterhouseCoopers B.V.</mixed-citation>
      </ref>
      <ref id="B45">
        <mixed-citation>Qiu, Y., &amp; Zhao, J. (2019). <italic>Too hot to focus: The mean and distributional effects of heat on labor productivity</italic>. Available at SSRN: <ext-link xlink:href="10.2139/ssrn.3421890" ext-link-type="doi">https://doi.org/10.2139/ssrn.3421890</ext-link></mixed-citation>
      </ref>
      <ref id="B46">
        <mixed-citation>Rahmstorf, S., &amp; Coumou, D. (2011). Increase of extreme events in a warming world. <italic>Proceedings of the National Academy of Sciences, 108</italic>(44), 17905–17909. <ext-link xlink:href="10.1073/pnas.1101766108" ext-link-type="doi">https://doi.org/10.1073/pnas.1101766108</ext-link></mixed-citation>
      </ref>
      <ref id="B47">
        <mixed-citation>Rodchenkov, M. V. (2022). Comparability of accounting indicators of international financial statements from the position of investors. <italic>Finance, Money, Investments, 3</italic>, 18–23. <ext-link xlink:href="10.36992/2222-0917_2022_3_18" ext-link-type="doi">https://doi.org/10.36992/2222-0917_2022_3_18</ext-link></mixed-citation>
      </ref>
      <ref id="B48">
        <mixed-citation>Song, Y., Pan, Z., Lun, F. et al. (2023). Temperature impact on the economic growth effect: Method development and model performance evaluation with subnational data in China. <italic>EPJ Data Science, 12</italic>(1), 51. <ext-link xlink:href="10.1140/epjds/s13688-023-00425-2" ext-link-type="doi">https://doi.org/10.1140/epjds/s13688-023-00425-2</ext-link></mixed-citation>
      </ref>
      <ref id="B49">
        <mixed-citation>Somanathan, E., Somanathan, R., Sudarshan, A., &amp; Tewari, M. (2021). The impact of temperature on productivity and labor supply: Evidence from Indian manufacturing. <italic>Journal of Political Economy, 129</italic>(6), 1797–1827. <ext-link xlink:href="10.1086/713733" ext-link-type="doi">https://doi.org/10.1086/713733</ext-link></mixed-citation>
      </ref>
      <ref id="B50">
        <mixed-citation>Tol, R. S. J. (2009). The economic effects of climate change. <italic>Journal of Economic Perspectives, 23</italic>(2), 29–51. <ext-link xlink:href="10.1257/jep.23.2.29" ext-link-type="doi">https://doi.org/10.1257/jep.23.2.29</ext-link></mixed-citation>
      </ref>
      <ref id="B51">
        <mixed-citation>Wan, W., &amp; Wang, J. (2024). The impact of weather on economic growth: County-level evidence from China. <italic>Sustainability, 16</italic>(22), 9988. <ext-link xlink:href="10.3390/su16229988" ext-link-type="doi">https://doi.org/10.3390/su16229988</ext-link></mixed-citation>
      </ref>
      <ref id="B52">
        <mixed-citation>Wang, C., &amp; Lin, Q. (2021). How does bad weather affect labor productivity? Evidence from the adaptation behavior of couriers. <italic>China Economic Quarterly, 21</italic>(3), 797–818.</mixed-citation>
      </ref>
      <ref id="B53">
        <mixed-citation>Wu, L., Liu, D., &amp; Lin, T. (2023). The impact of climate change on financial stability. <italic>Sustainability, 15</italic>(15), 11744. <ext-link xlink:href="10.3390/su151511744" ext-link-type="doi">https://doi.org/10.3390/su151511744</ext-link></mixed-citation>
      </ref>
      <ref id="B54">
        <mixed-citation>Zanocco, C., Boudet, H., Nilson, R., Satein, H., Whitley, H., &amp; Flora, J. (2018). Place, proximity, and perceived harm: Extreme weather events and views about climate change. <italic>Climatic Change, 149</italic>(3), 349–365. <ext-link xlink:href="10.1007/s10584-018-2251-x" ext-link-type="doi">https://doi.org/10.1007/s10584-018-2251-x</ext-link></mixed-citation>
      </ref>
      <ref id="B55">
        <mixed-citation>Zehri, C. (2025). Renewable energy and industrial innovation: Catalysts for economic and trade growth. <italic>Russian Journal of Economics, 11</italic>, 93–122. <ext-link xlink:href="10.32609/j.ruje.11.142815" ext-link-type="doi">https://doi.org/10.32609/j.ruje.11.142815</ext-link></mixed-citation>
      </ref>
      <ref id="B56">
        <mixed-citation>Zeilinger, J., Kantelhardt, J., &amp; Niedermayr, A. (2025). Climate change, soil conservation measures and farm performance in Austria. <italic>Journal of Agricultural Economics, 76</italic>(1), 182–210. <ext-link xlink:href="10.1111/1477-9552.12620" ext-link-type="doi">https://doi.org/10.1111/1477-9552.12620</ext-link></mixed-citation>
      </ref>
      <ref id="B57">
        <mixed-citation>Zhang, W., Ding, N., Han, Y., He, J., &amp; Zhang, N. (2023). The impact of temperature on labor productivity — evidence from temperature-sensitive enterprises. <italic>Frontiers in Environmental Science, 10</italic>, 1039668. <ext-link xlink:href="10.3389/fenvs.2022.1039668" ext-link-type="doi">https://doi.org/10.3389/fenvs.2022.1039668</ext-link></mixed-citation>
      </ref>
    </ref-list>
    <fn-group>
      <fn id="en1">
        <p>Norway’s oil industry is shifting toward the north, to the Barents Sea. This transition means it must adjust to temperatures down to –30 °C, storms, sleet, and snow, and possibly to drift ice in the case of operations toward the north and east of these seas (Gudmestad and Markeset, 2015).</p>
      </fn>
      <fn id="en2">
        <p>This study defined a severe temperature regime as the prevalence of average annual negative values with frequent transitions of the ambient temperature through zero degrees Celsius.</p>
      </fn>
      <fn id="en3">
        <p>Testing and data processing were conducted using Stata 17.</p>
      </fn>
      <fn id="en4">
        <p>Trading Economics. https://tradingeconomics.com/; World Atlas. https://www.worldatlas.com/climate/the-10-coldest-countries-in-the-world.html</p>
      </fn>
      <fn id="en5">
        <p>The above indicators are information-significant reporting indicators (ISRI; Rodchenkov, 2022).</p>
      </fn>
      <fn id="en6">
        <p>On November 20, 2020, the International Accounting Standards Board (IASB or the Board) issued a document prepared for educational purposes highlighting the IFRS requirements relevant to organizations’ climate-related financial reporting. The document does not amend, cancel, or supplement the requirements of IFRS, and its objective is to support robust climate-related disclosures (see https://www.ey.com/content/dam/ey-unified-site/ey-com/en-gl/technical/ifrs-technical-resources/documents/ey-ifrs-devel-177-climate-change-november-2020.pdf).</p>
      </fn>
      <fn id="en7">
        <p>Energy Intelligence. High Jump: East Siberian pipeline cost set to jump by 40%. https://www.energyintel.com/0000017b-a7ad-de4c-a17b-e7ef2da30000</p>
      </fn>
      <fn id="en8">
        <p>
          <ext-link xlink:href="https://www.ifrs.org/issued-standards/list-of-standards/ifrs-1-first-time-adoption-of-ifrs/" ext-link-type="uri">https://www.ifrs.org/issued-standards/list-of-standards/ifrs-1-first-time-adoption-of-ifrs/</ext-link>
        </p>
      </fn>
      <fn id="en9">
        <p>
          <ext-link xlink:href="https://www.ifrs.org/issued-standards/list-of-standards/ias-37-provisions-contingent-liabilities-and-contingent-assets.html/content/dam/ifrs/publications/html-standards/english/2025/issued/ias37/" ext-link-type="uri">https://www.ifrs.org/issued-standards/list-of-standards/ias-37-provisions-contingent-liabilities-and-contingent-assets.html/content/dam/ifrs/publications/html-standards/english/2025/issued/ias37/</ext-link>
        </p>
      </fn>
      <fn id="en10">
        <p>
          <ext-link xlink:href="https://www.ifrs.org/issued-standards/list-of-standards/ias-12-income-taxes/" ext-link-type="uri">https://www.ifrs.org/issued-standards/list-of-standards/ias-12-income-taxes/</ext-link>
        </p>
      </fn>
      <fn id="en11">
        <p>For example, when assessing environmental risks to calculate the costs of liquidating facilities, it is also important to consider eliminating environmental damage during the construction and commissioning of facilities.</p>
      </fn>
      <fn id="en12">
        <p>BIS. The Basel III framework. https://www.bis.org/bcbs/publ/d424.htm</p>
      </fn>
    </fn-group>
  </back>
</article>
