Climate Stress Testing

IF 5 3区 经济学 Q1 BUSINESS, FINANCE Annual Review of Financial Economics Pub Date : 2023-10-03 DOI:10.1146/annurev-financial-110921-101555
Viral V. Acharya, Richard Berner, Robert Engle, Hyeyoon Jung, Johannes Stroebel, Xuran Zeng, Yihao Zhao
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Abstract

We explore the design of climate stress tests to assess and manage macroprudential risks from climate change in the financial sector. We review the climate stress scenarios currently employed by regulators, highlighting the need to ( a) consider many transition risks as dynamic policy choices, ( b) better understand and incorporate feedback loops between climate change and the economy, and ( c) further explore compound risk scenarios in which climate risks co-occur with other risks. We discuss how the process of mapping climate stress scenarios into financial firm outcomes can incorporate existing evidence on the effects of various climate-related risks on credit and market outcomes. We argue that more research is required to ( a) identify channels through which plausible scenarios can lead to meaningful short-run impact on credit risks given typical bank loan maturities, ( b) incorporate bank-lending responses to climate risks, ( c) assess the adequacy of climate risk pricing in financial markets, and ( d) better understand how market participants form climate risk expectations and how that affects financial stability. Finally, we discuss the advantages and disadvantages of using market-based climate stress tests that can be conducted with publicly available data to complement existing stress-testing frameworks. Expected final online publication date for the Annual Review of Financial Economics, Volume 15 is November 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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气候压力测试
我们探讨了气候压力测试的设计,以评估和管理金融部门气候变化带来的宏观审慎风险。我们回顾了监管机构目前采用的气候压力情景,强调需要(a)将许多转型风险视为动态的政策选择,(b)更好地理解和纳入气候变化与经济之间的反馈循环,以及(c)进一步探索气候风险与其他风险共同发生的复合风险情景。我们讨论了如何将气候压力情景映射到金融公司结果的过程中,以纳入有关各种气候相关风险对信贷和市场结果影响的现有证据。我们认为,需要更多的研究来(a)确定可能的情景通过哪些渠道对典型银行贷款期限的信贷风险产生有意义的短期影响,(b)纳入银行贷款对气候风险的反应,(c)评估金融市场气候风险定价的充足性,以及(d)更好地理解市场参与者如何形成气候风险预期及其如何影响金融稳定。最后,我们讨论了使用基于市场的气候压力测试的优点和缺点,这些测试可以使用公开可用的数据进行,以补充现有的压力测试框架。《金融经济学年度评论》第15卷的最终在线出版日期预计为2023年11月。修订后的估计数请参阅http://www.annualreviews.org/page/journal/pubdates。
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26
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