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Integrating ESG risks into value-at-risk

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  • Capelli, Paolo
  • Ielasi, Federica
  • Russo, Angeloantonio

Abstract

This study addresses the regulatory request for sustainability-related risk integration into traditional financial risk measures. We propose a new risk metric that combines a traditional market risk measure expressed in terms of Value-at-Risk (VaR) and environmental, social, and governance (ESG) factors. The new metric, VaRESG, considers the orthogonality of the ESG criteria with fundamental variables, applying a perturbative approach and an entropy function of ESG factors. The pilot empirical application relies on a financial portfolio comprising approximately 3000 equities. The results show the predictive power of VaRESG to reduce unexpected losses (i.e., out-of-VaR). The results were confirmed especially under stress conditions, when the values of losses were higher (in terms of magnitude). To the best of our knowledge, this is the first attempt in the financial literature to effectively integrate ESG risks into the VaR measure to predict the expected losses of an equity portfolio. The measure of VaRESG can be useful to asset managers and institutional investors to reduce unexpected losses, and to supervisors interested in increasing the level of accuracy of VaR estimations.

Suggested Citation

  • Capelli, Paolo & Ielasi, Federica & Russo, Angeloantonio, 2023. "Integrating ESG risks into value-at-risk," Finance Research Letters, Elsevier, vol. 55(PA).
    • Handle: RePEc:eee:finlet:v:55:y:2023:i:pa:s1544612323002477
    DOI: 10.1016/j.frl.2023.103875
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    References listed on IDEAS

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    More about this item

    Keywords

    ESG risk; Financial portfolio; Market risk; Value-at-risk; Volatility;
    All these keywords.

    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General

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