Promoting high-quality development is the primary task of building a modern socialist country in an all-round way.Manufacturing industry is the mainstay and basic industry of our country’s modern national economy development.Its level of development determines our country’s international competitiveness and international status.It is a guarantee for the sustainable development of Chinese manufacturing industry and the improvement of international competitiveness for enterprises to invest in independent research and development and obtain research results and transformation.The government should implement the enterprise-centered innovation development strategy,encourage enterprises to continuously conduct independent research and development,and preferential corporate income tax policy support for enterprises that actively carry out R&D investment.Based on the above research background,this paper takes the listed companies in five cities of Jiaodong Economic Circle as examples to discuss the influence of corporate income tax preference on the R&D investment of manufacturing enterprises.In view of the problems existing in the current corporate income tax preference policy to promote the R&D investment of manufacturing enterprises,it puts forward suggestions to improve the current government tax preference policy.In the first chapter,after discussing the research background and significance,the relevant literature is reviewed,and the relevant literature of corporate income tax incentives,corporate research and development investment and corporate income tax preferential policies affecting corporate research and development investment is sorted out,and the research content and research methods are defined,and the innovation and shortcomings of this paper are put forward.The second chapter firstly defines the concept of enterprise income tax preference and enterprise R&D investment.Secondly,based on tax preference theory,endogenous growth theory and market failure theory,the mechanism of corporate income tax preference on R&D investment is discussed.The third chapter analyzes the current situation of manufacturing enterprises in Jiaodong economic circle,the current preferential tax policies for manufacturing enterprises and the relevant problems,and forms the basic judgment of the impact of enterprise income tax preference on enterprise R&D investment.The fourth chapter puts forward three main research hypotheses.63 A-share listed manufacturing enterprises in Jiaodong Economic Circle from 2016 to 2021 are selected as research objects,and corresponding regression models are established for empirical research.This paper discusses the influence and effect of current enterprise income tax preference on R&D investment of manufacturing enterprises.On this basis,the heterogeneity of the samples was analyzed,and the robustness of the samples was tested.The results show that: in Jiaodong economic circle five cities enterprise income tax preferential policies for the development of our manufacturing industry has played a positive role in promoting and promoting effect.At the level of enterprise property rights,the impact of increasing R&D investment on private enterprises is much greater than that on state-owned enterprises.From the perspective of enterprise maturity,the higher the development level and maturity of enterprises,the stronger the incentive effect of enterprise income tax preferential policies on manufacturing enterprises to increase R&D investment.Finally,combining the empirical analysis results and the problems existing in the preferential policy of income tax of manufacturing enterprises,this paper puts forward corresponding countermeasures and suggestions: establish a perfect tax incentive policy system and implementation effect evaluation system;We will adjust the structure of corporate income tax incentives and increase tax incentives.We will appropriately increase corporate income tax cuts and exemptions. |