The green innovation strategy has gradually become the key for enterprises as microeconomic entities to gain competitive advantages and adapt to complex changes in the external environment. Using the data of A-share listed companies in Shanghai and Shenzhen from 2010 to 2020, this paper empirically explores the impact and specific mechanism of the ownership structure of multiple major shareholders on the green innovation of enterprises. The results show that, compared with the shareholding structure of a single major shareholder, a publicly traded company with a multi-stakeholder ownership structure has a higher level of green innovation. The mechanism test shows that the equity arrangement of multiple major shareholders promotes green innovation by alleviating the fluctuation in the cash flow of the enterprise. This paper further examines the effect of regulation of multiple major shareholders on corporate green innovation and finds that green finance and the protection of intellectual property can form an effective complementary mechanism with the equity arrangement of multiple major shareholders, thereby strengthening the green innovation of enterprises. After the robustness test is carried out by the double-difference method, the two-stage instrumental variable method, and the substitution variable method, the empirical results of this paper are still valid.

This paper took the panel data of 1052 heavily-polluting listed companies from both the Shanghai and Shenzhen Stock Exchange from 2010 to 2017 to empirically analyze the impact of environmental regulation (ERG) on firm performance (FP). The article introduces a mediating effect model to test the mediating role of corporate tax burden (ETR) within the relationship between ERG on FP. The results showed that: (1) ERG has exerted a significant enhancement effect on the performance of heavily polluted firms via the ETR reduction mechanism. (2) The mediating effect of ETR depends on the duration of ERG. A significant time lag exists before the mediating effect starts to work, and the magnitude of the mediating effect increases with the time lag from the execution of the ERG. (3) The mediating effect of ETR varies significantly with the nature of corporate property rights. It is significant for the state-owned firms, while for non-state-owned firms, there is no evidence supporting the existence of the mediating effect of ETR despite ERG still having a significant direct-impact on FP. Based on these findings, we discuss the policy suggestion to optimize the impact of environmental regulation policies in terms of incentivizing the green development of polluting firms.