ESG incidents and corporate green bond market reaction

Matteo Cotugno, Paolo Fiorillo, Stefano Monferrà and Sabrina Severini

Journal of International Financial Markets, Institutions and Money, 2025, vol. 102, issue C

Abstract: This paper examines how the secondary market for corporate green bonds reacts to the announcement of Environmental, Social and Governance (ESG) incidents. We compare the cumulative abnormal returns (CARs) of green bonds with those of similar conventional bonds issued by the same firm, using a large international sample covering the period 2013–2022. Our results indicate that the performance of both green and conventional bonds declines after an ESG incident, but the decline is more pronounced for conventional bonds. We attribute this finding to the cost-effectiveness motive driving investors’ response to the ESG incident, as we find that a) there is no green premium (at issuance) in our sample, and b) green bonds are, on average, less liquid than conventional bonds, making the latter easier to sell due to lower transaction costs. Consistent with this argument, we observe opposite findings − namely, no significant performance differences and conventional bonds outperforming green bonds after the ESG incident − only in cases where green bonds exhibit higher liquidity, such as those issued by European firms or those compliant with the Climate Bond Initiative (CBI) standards.

Keywords: Green bond; ESG Incidents; Bond Liquidity; Greenium; Greenwashing; Sustainable finance (search for similar items in EconPapers)
JEL-codes: G12 G32 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:intfin:v:102:y:2025:i:c:s104244312500068x

DOI: 10.1016/j.intfin.2025.102178

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