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Impact of the Environmental, Social, and Governance Rating on the Cost of Capital: Evidence from the S&P 500

Author

Listed:
  • Dietmar Ernst

    (International School of Finance (ISF), Nuertingen-Geislingen University, Sigmaringer Straße 25, 72622 Nuertingen, Germany)

  • Florian Woithe

    (International School of Finance (ISF), Nuertingen-Geislingen University, Sigmaringer Straße 25, 72622 Nuertingen, Germany)

Abstract

We use the S&P 500 to investigate whether companies with a good ESG score benefit from a lower cost of capital. Using Bloomberg’s financial data and MSCI’s ESG score for 498 companies, we calculated the measures of descriptive statistics, finding that companies with better ESG ratings enjoy both a lower cost of equity and a lower cost of debt. However, their WACC shows no improvement with a higher ESG score. Companies with a poor ESG rating have a lower WACC due to the higher proportion of debt capital, coupled with a higher cost of debt, compared to the cost of equity capital. Calculating the Pearson correlation coefficient, we found a slightly negative linear relationship between the ESG score and the beta factor, and between the ESG score and the cost of debt. No linear relationship was found between the WACC and the ESG score. Finally, linear regression analysis shows a negative and significant effect of the ESG score on the root beta factor. This research indicates that companies with better ESG scores benefit from lower cost of equity and debt. Our results may encourage companies to operate more sustainably to reduce their cost of capital.

Suggested Citation

  • Dietmar Ernst & Florian Woithe, 2024. "Impact of the Environmental, Social, and Governance Rating on the Cost of Capital: Evidence from the S&P 500," JRFM, MDPI, vol. 17(3), pages 1-15, February.
    • Handle: RePEc:gam:jjrfmx:v:17:y:2024:i:3:p:91-:d:1342225
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    References listed on IDEAS

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    4. Wong, Woei Chyuan & Batten, Jonathan A. & Ahmad, Abd Halim & Mohamed-Arshad, Shamsul Bahrain & Nordin, Sabariah & Adzis, Azira Abdul, 2021. "Does ESG certification add firm value?," Finance Research Letters, Elsevier, vol. 39(C).
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    2. Gong, Qi & Kong, Zhaoyang & Li, Liang & Dong, Xiucheng & Li, Yang, 2026. "The consequences of hypocrisy: how ESG greenwashing undermines green total factor productivity," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 106(C).
    3. Shanshan Yue & Saleh F. A. Khatib & Guang Ye & Norkhairul Hafiz B. Bajuri & Farid Ullah, 2026. "Silent No More: How Minority Shareholder and ESG Ratings Propel Environmental Innovation in China," Business Ethics, the Environment & Responsibility, John Wiley & Sons, Ltd., vol. 35(2), pages 1305-1331, April.
    4. Reni Listyawati & Hadri Kusuma & Yuni Nustini, 2025. "The Role of Sustainability Disclosure in Enhancing Bank Performance: Evidence from ASEAN Countries," Economic Studies journal, Bulgarian Academy of Sciences - Economic Research Institute, issue 6, pages 21-43.
    5. Ahmed Saber Moussa & Mahmoud Elmarzouky, 2024. "Beyond Compliance: How ESG Reporting Influences the Cost of Capital in UK Firms," JRFM, MDPI, vol. 17(8), pages 1-21, July.
    6. Tawfiq Taleb Tawfiq & Hala Tawaha & Asem Tahtamouni & Nashat Ali Almasria, 2024. "The Influence of Environmental, Social, and Governance Disclosure on Capital Structure: An Investigation of Leverage and WACC," JRFM, MDPI, vol. 17(12), pages 1-16, December.

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