Research on the impact of government subsidies on innovation efficiency of new energy vehicle companies based on DEA model
Based on the panel data of new energy vehicle listed companies from 2015 to 2020,this paper uses DEA soft-ware to measure innovation efficiency,and analyzes the impact of government subsidies on innovation efficiency of new energy vehicle companies.The results show that there is still room for improvement in the innovation efficiency of new energy vehicle companies,and innovation efficiency is mainly limited by scale efficiency.Government subsidies can significantly promote the innovation efficiency of new energy vehicle companies,and there is an"inverted U-shaped"relationship between the two.Based on the research conclusions,this paper puts forward relevant policy suggestions and provides a reference for the government to optimize subsidy policies.
DEA modelgovernment subsidiesinnovation efficiency
NETL
NSTL
万方数据
