| In recent years,my country’s economic development mode has shifted from highspeed development to high-quality development.Promoting high-quality development is the strategic goal of my country’s development,and the key factor to achieve this goal is technological innovation.However,due to the large scale of enterprise R&D investment,high innovation risk and external economy,the market supply and demand is unbalanced.It is necessary for the government to use macro policies to support and guide enterprises to enhance the enthusiasm of enterprise R&D innovation,increase innovation investment and carry out technological innovation activities.Improve the ability of independent innovation and give full play to the main market position of enterprises.In this context,this paper takes the data of high-tech enterprises in Jiangsu Province from 2015 to 2020 as a sample to study the impact of Jiangsu Province’s fiscal and taxation policies on innovation investment in high-tech enterprises.It further studies the role of R&D personnel investment in the financial and taxation policies on corporate innovation investment and the differences in the impact of fiscal and taxation policies on corporate innovation investment under regional heterogeneity and corporate property rights heterogeneity.It is concluded that: first,financial subsidy policies and preferential tax policies can significantly encourage enterprises to increase innovation investment;second,the promotion effect of preferential tax policies on enterprise innovation investment has a certain time lag;third,R&D personnel can strengthen the incentive effect of financial subsidies and preferential tax policies on enterprise innovation investment;fourth,high-tech enterprises in southern Jiangsu enjoy The financial subsidy policy and the interaction terms of financial subsidy and tax preference have a stronger incentive effect on enterprise innovation investment than those in northern and central Jiangsu,while the tax preference policy in central Jiangsu has a stronger incentive effect on enterprise innovation investment than in southern and northern Jiangsu;Fifth,the financial subsidy policies,preferential tax policies and the combined effect of the non-stateowned enterprises on the incentive effect of enterprise innovation investment are stronger than the state-owned enterprises.On the basis of the above conclusions,combined with the problems existing in the fiscal and taxation policies of Jiangsu Province to support the innovation of high-tech enterprises,countermeasures and suggestions are put forward. |