Nexus between mandatory ESG disclosure regulation and abnormal stock returns: a study of an emerging economy.

Purpose: This study aims to study the response of the stock market to the announcement of compulsory environmental, social and governance (ESG) disclosure regulation in the context of the Indian economy – one of the largest emerging economies. The study also examines the role of carbon sensitivity and pre-ESG disclosure. Design/methodology/approach: Daily stock price data of 940 listed companies has been collected for 276 trading days to compute abnormal returns. The current study is based on event study methodology to analyze the announcement effect of disclosure regulations. Furthermore, to check the robustness of results, cross-sectional regression has been applied to correct for potential heterogeneity. Findings: Results of the event study signify that the equity share market has reacted positively and significantly to the mandatory ESG disclosure regulation. Furthermore, the study also confirms the mitigating role of carbon sensitivity and pre-ESG disclosure as carbon nonsensitive (non predisclosure) firms have witnessed a more intense effect of regulation as compared to sensitive (predisclosed) corporations. Practical implications: Current findings assist managers in understanding investor perception toward nonfinancial disclosures. Corporate managers can use disclosure as a tool to enhance the firm value and reduce information asymmetry by providing relevant information. Furthermore, policymakers can use the findings of present research to disseminate the advantages of adopting ESG disclosure practices thereby improving the transparency and governance among business firms. Originality/value: To the best of the author's knowledge, this study is the first to provide empirical evidence on the market response to compulsory ESG disclosure framework in the emerging context of India. Furthermore, considering the infancy stage of ESG research, the present research contributes to the body of knowledge by empirically testing the disclosure theories. [ABSTRACT FROM AUTHOR]