Climate policy and corporate green transformation: Empirical evidence from carbon emission trading.

The implementation of climate policies in the financial sector is a global consensus among countries committed to sustainable development. Therefore, the impact of carbon trading policy (CTP) on firms' green transformation (GT) is examined by manually compiling a directory of emission control enterprises in China's carbon market from 2008 to 2022, using a difference-in-differences model. This topic must be urgently explored through theoretical and empirical studies. This study found that CTP can promote corporate green transformation; however has no industry and regional spillover effects. Mechanism analyses indicate that CTP can promote a firm's green transformation by enhancing green innovation and environmental, social, and governance (ESG) performance. Heterogeneity analysis reveals that the effect of CTP on GT is effective when firms have higher "greenwash" scores, lower financialization, weaker product market competition, and higher levels of environmental regulation. This study reveals the microeconomic effects of CTP, and the findings provide empirical evidence that China can realize Porter's hypothesis. [Display omitted] • The existence of biased estimates of the effects of carbon emissions trading policy (CTP) is mitigated. • CTP is effective in facilitating a substantial green transition and mitigating "greenwash" behaviour. • Verified that China can realize the Porter hypothesis and promote coordinated economic and environmental development. [ABSTRACT FROM AUTHOR]