加强知识产权保护能够提升企业出口国内增加值吗?

Can Strengthening the Protection of IPR Increase Domestic Export Value of Enterprises?

本文在匹配中国工业企业数据库和中国海关数据库基础上,测度了2006—2013年企业出口国内增加值率,并利用省级层面的知识产权保护测度指标,计量检验了知识产权保护对企业出口国内增加值率的影响。结果表明:知识产权保护程度对企业出口国内增加值呈现倒U型非线性影响,即知识产权保护程度的增强,对企业出口国内增加值率的影响呈现从促进到抑制的作用过程转变。在控制了其他可能影响因素后以及在各种稳健性检验中,上述研究发现依然成立。进一步的作用机制检验表明,知识产权保护主要通过企业创新这一重要作用机制影响着企业出口国内增加值率。因此,从促进企业出口国内增加值率提升的角度看,继续加强知识产权保护不仅必要而且可行。本文研究发现为中国进一步扩大以加强知识产权保护等为表现的开放举措提供了科学依据和经验证据,也对中国探寻改善全球价值链分工地位的有效路径有着重要政策意涵。

Based on the matching of China Industrial Enterprise Database and China Customs Database,this paper measures the domestic value-added rate of export of enterprises from 2006 to 2013,and uses the IPR protection measurement indicators at the provincial level to test the impact of protection of intellectual property rights on exporting domestic value-added rates.The results show,that the degree of intellectual property protection has a negative“U”-type nonlinear effect on the domestic value-added of enterprises,that is,the degree of intellectual property protection is enhanced,and the impact on the domestic value-added rate of enterprises’exports is changed from promotion to inhibition.The above findings still hold after controlling for other possible influencing factors and various robustness tests.Further testing of the mechanism of action shows that intellectual property protection mainly affects the domestic value-added rate of export of enterprises through the important mechanism of enterprise innovation.Therefore,it is not only necessary but also feasible to continue to strengthen intellectual property protection from the perspective of promoting the increase of domestic export growth rate.The research findings of this paper not only provides scientific evidence and empirical evidence for China to expand its opening up measures to enhance the protection of intellectual property rights,but also has important policy implications for China to explore an effective way to improve the status of global value chain division.