Research On The Impact Of Changing Pollutant Discharge Fee To Environmental Protection Tax On Enterprise Technological Innovation

At present,China’s industrialization is gradually turning to high-quality development.While paying attention to economic benefits,it has also increased its attention to ecological benefits.Environmental Protection Tax has always been the focus of research by scholars at home and abroad.After the official implementation of the Environmental Protection Tax change from Pollutant Discharge Fee in 2018,green tax related research has been pushed to a new climax.With the advent of the era of knowledge economy,strengthening technological innovation is the inevitable requirement of conforming to the development of the times,so the impact of changing Pollution Discharge Fee to Environmental Protection Tax on technological innovation is a hot research topic nowadays.Based on the panel data of China’s manufacturing A-share listed companies from 2016 to 2019,this paper uses a Differences-in-Differences model to evaluate the impact of changing Pollution Discharge Fee to Environmental Protection Tax on corporate technological innovation,and comprehensively considers the two indicators of innovation input and innovation output.The results show that the "fee to tax" event has a significant negative impact on the technological innovation of enterprises.In addition,the technological innovation effect of Environmental Protection Tax reform of Pollution Discharge Fee is enterprise heterogeneous,and it has a negative and significant impact on state-owned enterprises and enterprises with a scale below the average value,while there is no significant impact on Non-state-owned enterprises and enterprises with a scale above the average value.