Can environmental tax bring strong porter effect? Evidence from Chinese listed companies
2022
Lei, Zhuojun | Huang, Lingyun | Cai, Yao
Existing researches verify Porter hypothesis mainly through one of its core establishment paths, innovation compensation, but ignore the other one, first-mover advantages. This paper considers both these paths and further distinguishes environmental R&D and non-environmental R&D in empirical study. Based on the smooth transition principle of “charge to tax” in China, this paper, taking Chinese A-share listed companies that have disclosed environmental R&D from 2008 to 2017 as sample and predicting environmental tax by pollution charge, analyzes the relationship between environmental tax and firm performance and its transmission mechanism. First, our results show that environmental tax can improve firm performance, and this influence remains in long term. After introducing instrument variable (IV) to deal with endogeneity and conducting a series of robustness tests, we then find that the relationship between environmental tax and firm performance is a robust causality. Eventually, we apply mediating effect model to further confirm the two core paths of Porter hypothesis by manifesting that environmental tax can affect firm performance through both innovation compensation and first-mover advantages. Our contributions are revealing the micro mechanism of environmental tax on firm performance, providing evidence from China to support strong Porter hypothesis, and offering some key points regarding environmental tax reform and corporate green strategy.
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