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ESG Performance and Economic Consequences: How Environmental, Social, and Governance Ratings Shape Financing Costs and Stock Returns

Author(s)

Yiran Wang

Affiliation(s)

School of Economics and Management, Beijing Jiaotong University, Beijing, China

Abstract

Environmental, social, and governance (ESG) performance has emerged as a central variable in capital allocation, yet its economic consequences remain contested. This paper synthesizes the theoretical mechanisms and empirical evidence linking ESG ratings to financing costs and stock returns across firm-, market-, and institutional-level contexts. Drawing on asset-pricing theory, stakeholder theory, and disclosure research, we examine how risk mitigation, information quality, governance discipline, and investor preferences translate ESG signals into observable capital-market outcomes. Evidence consistently shows that stronger ESG performance reduces both debt and equity financing costs by lowering perceived downside risk, improving transparency, and broadening the investor base. Stock-return evidence is more ambiguous: ESG-associated return outperformance tends to emerge during crisis periods and market repricing episodes, but may compress once sustainable preferences are institutionalized. Rating divergence across providers further complicates inference. These findings suggest that ESG functions as a conditional force—reshaping financing terms reliably, but reshaping expected returns only under specific institutional conditions, timing, and measurement frameworks.

Keywords

ESG; Cost of Capital; Cost of Equity; Cost of Debt; Stock Returns; Sustainable Investing; Rating Divergence

References

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