研发投入、知识产权保护与企业创新质量

创新质量是“双创”和“中国制造2025”背景下社会讨论的热点话题，也是企业关注的重要能力。使用2008－2016年中国A股上市公司数据，分析研发投入、知识产权保护与企业创新质量之间的关系，并考察知识产权保护水平在研发投入和企业创新质量之间的调节作用。研究发现，研发投入能够显著提升企业创新质量；知识产权保护与企业创新质量之间呈显著倒“U”形关系；知识产权保护对研发投入与企业创新质量的调节作用存在最优区间。研究结论进一步深化了知识产权保护影响企业创新的认知。在此基础上，结合省际知识产权保护数据，提出国家、地方和企业层面因地制宜制定创新发展战略的建议。

R&D Investment,Intellectual Property Protection and Quality of Enterprise Innovation

The quality of innovation is on heated discussion under the background of “Mass entrepreneurship and innovation” and “Made in China 2025” in China,and it is also an important capability of enterprises.This paper uses the data of China's A-share listed companies from 2008 to 2016 to study the relationship between R&D investment,intellectual property protection and the quality of enterprise innovation,and to examine the regulatory mechanism of intellectual property protection between R&D investment and corporate innovation quality.This paper finds that:R&D investment can significantly improve the innovation quality of enterprises；There is a clear “U” relationship between intellectual property protection and enterprise innovation quality；There is an "optimal interval" for the regulatory mechanism of intellectual property protection between R&D investment and corporate innovation quality.The conclusions of this paper will further improve the understanding of how intellectual property protection will affect enterprise innovation,and according to the intellectual property protection data of provincial administrative regions,we provide suggestion on how to formulate innovative development strategies according to local conditions at the national,provincial and enterprise levels.This paper is of theoretical and practical significance to some extent.