Does the Confucianism in audit firms enhance the corporate ESG Disclosure?

•The Confucian culture within audit firms has the potential to significantly augment corporate ESG disclosure.•Regional and corporate cultures serve as conduits that facilitate this enhancement.•Geographical distance can constrain this facilitating influence.•Our findings apply Confucian culture to audit and governance, offering insights for disclosure advancements. This paper examines the role of Confucian culture characterized by traditional virtues such as benevolence, righteousness, propriety, wisdom, and trust in audit firms and corporate ESG disclosure. Using data from Chinese A-share listed companies from 2008 to 2021, we found that Confucian culture in audit firms significantly promotes the level of corporate ESG disclosure. We also tested the moderating effect of regional culture and corporate culture, and found that in regions with stronger merchant guild culture and higher levels of social trust, as well as in companies with a stronger culture of integrity and cooperation, the promotion effect of Confucian culture in audit firms on corporate ESG disclosure is more pronounced. Furthermore, we discovered that the closer the geographical distance between audit firms and client companies, the greater the positive impact of Confucian culture in audit firms on corporate ESG disclosure. Overall, this study reveals the modern value of Confucian traditional culture for the improvement of enterprises’ environmental friendly behaviors from the perspective of external audit, and highlighted the relevance of informal institutions in corporate governance.