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Are ESG factors truly unique?

Author

Listed:
  • Covachev, Svetoslav
  • Martel, Jocelyn
  • Brito-Ramos, Sofia

Abstract

The growing popularity of ESG investing raises questions about whether ESG and carbon factors represent unique sources of systematic risk or are absorbed by traditional equity factors. We find that the systematic components of recently proposed carbon and ESG risk factors are linear combinations of well-known risk factors. The ESG factor has a positive exposure to large firms, high beta firms and to the safety factor (a subcomponent of the quality factor). The carbon factor has positive exposure to the market and safety factors and negative loadings on the size and profitability factors. Furthermore, investors who follow well-known ESG indexes are exposed to market and size factor risks, and not always to the ESG and carbon factors. Such indexes are nevertheless closely related to the “long leg” of the ESG factor. Overall, the evidence suggests that the ESG and carbon factors are subordinated to other factors, highlighting the importance of leveraging established risk factors to account for ESG and carbon risks.

Suggested Citation

  • Covachev, Svetoslav & Martel, Jocelyn & Brito-Ramos, Sofia, 2025. "Are ESG factors truly unique?," The North American Journal of Economics and Finance, Elsevier, vol. 77(C).
    • Handle: RePEc:eee:ecofin:v:77:y:2025:i:c:s1062940825000269
    DOI: 10.1016/j.najef.2025.102386
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    More about this item

    Keywords

    ESG; Carbon factor; Corporate social responsibility; Investment decisions; Risk factors; ESG indexes;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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