Research On The Influence Of Tax Preference On The Investment Of Innovation Research And Development Of Enterprises

Since China's reform and opening up,after three decades of rapid economic development in our country,to become the world's second-largest economy,the country's economic construction has made remarkable achievements,but at the same time,vulgar development also gradually exposed the shortcomings,the shirt in the plane mode of economic growth are not permanent,technological innovation is the key to break the deadlock has momentum for growth factors.General secretary xi jinping has pointed out that science and technology are the primary productive forces and innovation is the primary driving force for development.At present,the global rise of a new round of technological revolution,both individual production life style and pattern of the world development are affected by this change,the research and development of innovation in science and technology industry is also put forward the new challenge,and enterprises as an important subject of research and development innovation,plays an important role in the strategy of science and technology power.Different from scientific research institutions,scientific and technological innovation activities of enterprises as market subjects have strong externalities,which need to be balanced by the state through tax means.The Chinese government has also issued a series of preferential tax policies to encourage enterprises to increase investment in innovation and research.In this paper,three current preferential tax policies,namely preferential tax rate,additional deduction of r&d expenses and accelerated depreciation of fixed assets,are selected to study their impact on innovation r&d investment of enterprises,in the hope of providing reference for the optimal allocation of resources and the next policy modification.The first chapter is the introduction,which introduces the back of the topic,the significance of the topic,the literature review at home and abroad,the research ideas and methods,and the innovation and shortcomings.The second chapter introduces the related concepts and theories in detail.The third chapter is the present situation of China's scientific and technological innovation and related policy implementation-Chapter 4 and chapter 5 are the empirical part.The empirical analysis of sample enterprises is carried out through the double-difference model,and the empirical conclusions are drawn.Chapter six is the conclusion and suggestion of this paper.Based on tax incentives as the breakthrough point,to between 2010 and 2017,8 years of shenzhen gem listed company as sample source data,set up double difference model of preferential tax claim additional deduction,research and development costs,accelerated depreciation of fixed assets,three kinds of current research on the effect of preferential tax policy,and further refinement of different size,different funancing level,asset-liability ratio,enterprises of different ownership of heterogeneity analysis.Finally,according to the status quo of the implementation of preferential tax policies and empirical analysis results,Suggestions are put forward for the implementation and improvement of the following policies.The empirical results of this paper show that the current tax incentive policies in China significantly promote the innovation r&d investment of enterprises,and different tax incentive methods have different incentive effects on the innovation r&d investment of enterprises.Claim additional deduction differentiation results show that r&d policy for most of the innovation of the enterprise r&d incentives,markedly in tax preferential policies of large-scale enterprises,weak financing level of enterprises,companies with high debt and the innovation of the foreign capital enterprise r&d has significant incentives,accelerated depreciation of fixed assets policy innovation to the enterprise r&d showed no significant incentive effect.Therefore,the incentive effect of the three tax incentive policies is from strong to weak:additional deduction of r&d expenses,preferential tax rate,accelerated depreciation of fixed assets.Among them,the incentive effect of the accelerated depreciation policy of fixed assets is not significant,and the effect of various tax incentive policies is mutual credit.Based on this,this paper proposes to further enrich the forms of tax incentives,lower the threshold of tax incentives,develop the existing policies in a different way,improve the degree of engagement with enterprises enjoying the incentives,and encourage enterprises to actively participate in and feedback the results,so as to contribute to the tax system construction of a powerful country in science and technology.