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Disentangling the Effects of Firm‐Level Climate Risk and Capital Market Signalling: Evidence From Stock Price Informativeness

Author

Listed:
  • Rawinder Kaur
  • Frank Kwabi
  • Wansu Hu
  • Samuel Fulgence
  • Neil Lancastle

Abstract

This study examines the impact of firm‐level climate risk on stock price informativeness (SPI) through the integrated lens of stakeholder–shareholder theory. Using a global unbalanced panel of 73,770 firm‐year observations across 38 countries (2000–2020), we find that higher carbon emissions significantly reduce SPI, reflecting increased information asymmetry. Governance mechanisms, specifically board size, independence, tenure and nationality mix, consistently moderate this effect by enhancing disclosure and mitigating opacity. The negative relationship between emissions and SPI is strongest in common law countries and those with high institutional quality, where stricter enforcement and disclosure regimes heighten investor sensitivity to environmental risks. Additionally, we document that transparency in emission disclosure, financial risks and environmental liabilities is identified as a key channel through which firm‐level climate risk affects market informativeness. Furthermore, higher SPI is associated with lower cost of capital, more efficient capital allocation and reduced crash risk. This study contributes novel insights to the climate finance literature by integrating firm‐level governance factors with cross‐jurisdictional analysis. Robustness checks, including placebo tests, alternative SPI measures and system GMM estimation, confirm the validity of our results and underscore the importance of institutional context in pricing environmental risk.

Suggested Citation

  • Rawinder Kaur & Frank Kwabi & Wansu Hu & Samuel Fulgence & Neil Lancastle, 2026. "Disentangling the Effects of Firm‐Level Climate Risk and Capital Market Signalling: Evidence From Stock Price Informativeness," Business Strategy and the Environment, Wiley Blackwell, vol. 35(3), pages 3198-3217, March.
    • Handle: RePEc:bla:bstrat:v:35:y:2026:i:3:p:3198-3217
    DOI: 10.1002/bse.70291
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