“营改增”对高新技术企业技术创新的影响--基于双重差分模型的实证检验

Influence of“the Change from Business Tax to VAT”on Technological Innovation of High-tech Enterprises--An Empirical Test Based on the Difference-in-difference Model

选取2009—2018年高新技术企业A股上市公司数据,运用研发投入占营业收入的比重衡量技术创新,采用双重分模型检验“营改增”对高新技术企业技术创新的影响。研究表明,“营改增”政策的实施对高新技术企业的技术创新有显著促进作用,且对经济发展水平较高、较早实施“营改增”试点的东中部地区企业的促进作用更为显著。建议通过完善税率设置和增值税抵扣办法、给予西部地区更多税收优惠政策及优化纳税服务等措施,进一步增强高新技术企业技术创新活力。

The data of listed high-tech enterprises from 2009 to 2018 were selected,and the proportion of R&D investment in operating revenue was proxy for technological innovation,and the difference-in-difference model was used to test the impact of“the change from business tax to VAT”on technological innovation of high-tech enterprises.The research shows that the implementation of the change has a significant promotion effect on the technological innovation of high-tech enterprises,and it has a more significant promotion effect on the eastern and central regions with a higher level of economic development and the pilot implementation of the reform earlier.Therefore,it is necessary to improve the setting of tax rate and VAT deduction methods,give more preferential tax policies to the western region,optimize tax payment services and other measures to further enhance the technological innovation vitality of high-tech enterprises.