Environmental Protection Tax and Corporate Internal Income Inequality
The"double dividends"of environmental protection tax on environmental protection and economic efficiency have received widespread attention from academia,but there is little research on whether it has a"third dividend"on income distribution.Based on the introduction of environmental protection tax,this paper constructs a DID model to investigate the impact of environmental protection tax on internal income inequality in enterprises and its underlying mechanism.The study found that the introduction of environmental protection tax significantly reduced executive compensation,but had no significant impact on ordinary employee compensation,thus narrowing internal income inequality.Exploration of the mechanism of action found that constraining government-enterprise collusion to compress enterprise rent-seeking space is core mechanism channels for environmental protection tax to narrow internal income inequality.Heterogeneity analysis confirmed that the inhibitory effect of environmental protection tax on internal income inequality in enterprises was more pronounced in regions with lower environmental protection intensity and private enterprises.Besides,the study found that the narrowing effect of environmental protection tax on internal income inequality in enterprises mainly manifested as the suppression of unreasonable excess compensation gap,without significant impact on reasonable compensation gap.This study provides a preliminary attempt to connect the cross-cutting fields of green taxation and income distribution,and also provides new inspiration for the government to use tax tools to regulate income distribution pattern.
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