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ESG controversies, greenwashing, and value-destroying acquisitions

Author

Listed:
  • Cristian Pinto-Gutiérrez
  • Pablo Neudörfer
  • Sebastián Isaías

Abstract

This study examines whether environmental, social, and governance (ESG) controversies and ESG greenwashing influence the outcomes of merger and acquisition (M&A) transactions. We define greenwashing as the discrepancy between firms’ self-reported ESG scores and those adjusted for undisclosed controversies. Using a sample of 2,045 acquisitions by U.S. firms between 2010 and 2022, we find that higher levels of ESG controversies and greenwashing are significantly associated with lower cumulative abnormal returns (CAR) for acquirers and higher acquisition premiums. These effects are more pronounced among firms with greater analyst coverage or without ESG assurance, suggesting that market penalties intensify when greenwashing is more visible and ESG disclosures lack external validation. The findings highlight ESG misrepresentation as a strategic factor in value-destroying acquisitions and underscore the importance of credible ESG reporting for investors and regulators.

Suggested Citation

  • Cristian Pinto-Gutiérrez & Pablo Neudörfer & Sebastián Isaías, 2026. "ESG controversies, greenwashing, and value-destroying acquisitions," Journal of Sustainable Finance & Investment, Taylor & Francis Journals, vol. 16(2), pages 595-620, April.
    • Handle: RePEc:taf:jsustf:v:16:y:2026:i:2:p:595-620
    DOI: 10.1080/20430795.2025.2581647
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