企业异质性与加计扣除政策研发激励：来自中国高新技术企业的实证

基于2012-2015年全国高新技术企业税收数据，筛选仅享受研发加计扣除政策的高新技术企业微观数据，利用面板回归模型，检验研发加计扣除对研发投入的异质性激励效应。结果表明：加计扣除政策能够刺激企业进行研发投入。从地区看，加计扣除政策激励效应具有地域差异；从经济属性看，加计扣除政策对外资、民营企业研发激励效应较强；从行业看，加计扣除政策对科学技术行业激励效应最大。

Enterprise Heterogeneity and R&D Incentives of R&D Deduction Policy: an Empirical Study of High Tech Enterprises in China

Based on the tax data of the national high tech enterprises from 2012 to 2015, this paper filters the micro data of high tech enterprises that only enjoy the policy of R&D deduction, and apply the panel regression model to test the heterogeneous incentive effect of R&D deduction policy on R&D investment. The research shows that deduction policy can stimulate enterprises to invest in R&D. According to different regions, there is regional difference in the incentive effect of deduction policy. According to the sub economic attribute, there is a tendency of discrimination in ownership based on the deduction of policy effect, which stimulates foreign capital and private owned enterprises the most. The deduction policy has the greatest incentive effect on science and technology industry. Therefore, our country should continue to increase R&D deduction policy implementation, especially for scientific research and technology service industry.