| Since the reform and opening up,the quality of life of the people has been improved.In the past decade,the number of cars has also increased rapidly,and the rapid development of the automobile industry has also promoted economic growth.But fossil-fuel-powered cars also bring environmental pollution and energy shortages.Based on environmental and energy issues,new energy vehicles will become an inevitable trend in the development of China’s automotive industry.In recent years,China’s new energy vehicle industry has received relevant national industrial policy support and achieved rapid growth,but its technological innovation ability is still relatively weak,and for new energy vehicle enterprises,R&D investment is the lifeblood of the long-term survival of enterprises.The main research contents are as follows: firstly,the existing literature is sorted out,and the development status and R&D investment of the new energy vehicle industry are analyzed,and it is found that the overall R&D intensity of the industry is insufficient,and there are differences in the nature of different enterprises and different regions,and it is found that the existing policies have the problems of weak pertinence,small financing incentives and lack of talent incentives.Secondly,with the help of public goods theory,externality,tax incentive theory and technological innovation theory,the theoretical basis of the impact of corporate income tax incentives on R&D investment in the new energy vehicle industry was expounded,and the impact path of preferential tax policies on R&D investment was analyzed.Finally,using the data analysis of new energy vehicle enterprises from 2015 to 2021,the effect of preferential income tax policy on R&D capital investment and personnel investment is obtained,and the research conclusion shows that the preferential corporate income tax policy can promote the investment of R&D capital and human capital of enterprises,but the effect on capital investment is better than that of human capital investment,and the heterogeneity analysis shows that the preferential income tax policy has a more obvious effect on small-scale enterprises,eastern regions and non-state-owned enterprises.Based on the analysis of the above problems and the empirical analysis conclusions,the final policy suggestions are put forward: first,we should strengthen the preferential treatment of income tax and increase the super-deduction ratio;Second,it is necessary to refine the standards of tax incentives,the third is to implement the supporting system for policy implementation,and the fourth is to improve the preferential treatment of R&D personnel-related projects. |