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The Market Measure of Carbon Risk and its Impact on the Minimum Variance Portfolio

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  • Th'eo Roncalli
  • Th'eo Le Guenedal
  • Fr'ed'eric Lepetit
  • Thierry Roncalli
  • Takaya Sekine

Abstract

Like ESG investing, climate change is an important concern for asset managers and owners, and a new challenge for portfolio construction. Until now, investors have mainly measured carbon risk using fundamental approaches, such as with carbon intensity metrics. Nevertheless, it has not been proven that asset prices are directly impacted by these fundamental-based measures. In this paper, we focus on another approach, which consists in measuring the sensitivity of stock prices with respect to a carbon risk factor. In our opinion, carbon betas are market-based measures that are complementary to carbon intensities or fundamental-based measures when managing investment portfolios, because carbon betas may be viewed as an extension or forward-looking measure of the current carbon footprint. In particular, we show how this new metric can be used to build minimum variance strategies and how they impact their portfolio construction.

Suggested Citation

  • Th'eo Roncalli & Th'eo Le Guenedal & Fr'ed'eric Lepetit & Thierry Roncalli & Takaya Sekine, 2021. "The Market Measure of Carbon Risk and its Impact on the Minimum Variance Portfolio," Papers 2101.10635, arXiv.org.
  • Handle: RePEc:arx:papers:2101.10635
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    References listed on IDEAS

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    1. Maxwell, John W & Lyon, Thomas P & Hackett, Steven C, 2000. "Self-Regulation and Social Welfare: The Political Economy of Corporate Environmentalism," Journal of Law and Economics, University of Chicago Press, vol. 43(2), pages 583-617, October.
    2. Scherer, Bernd, 2011. "A note on the returns from minimum variance investing," Journal of Empirical Finance, Elsevier, vol. 18(4), pages 652-660, September.
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    Cited by:

    1. Daniel Ramos-García & Carmen López-Martín & Raquel Arguedas-Sanz, 2023. "Climate transition risk in determining credit risk: evidence from firms listed on the STOXX Europe 600 index," Empirical Economics, Springer, vol. 65(5), pages 2091-2114, November.
    2. Shashwat Mishra & Rishabh Raj & Siddhartha P. Chakrabarty, 2023. "Green portfolio optimization: A scenario analysis and stress testing based novel approach for sustainable investing in the paradigm Indian markets," Papers 2305.16712, arXiv.org.
    3. Mario Bajo & Emilio Rodríguez, 2022. "Integrating the carbon footprint into the construction of corporate bond portfolios," Working Papers 2226, Banco de España.
    4. Siddhartha P. Chakrabarty & Suryadeepto Nag, 2023. "Risk measures and portfolio analysis in the paradigm of climate finance: a review," SN Business & Economics, Springer, vol. 3(3), pages 1-22, March.
    5. Sankar, Namasi G. & Nag, Suryadeepto & Chakrabarty, Siddhartha P. & Basu, Sankarshan, 2024. "The carbon premium: Correlation or causality? Evidence from S&P 500 companies," Energy Economics, Elsevier, vol. 134(C).

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