专利法修改与企业创新——来自上市公司的实证研究  

Patent Law and Enterprise Innovation:Empirical Research on Listed Company

作　　者：田珺 冉忠明 Tian Jun;Ran Zhongming(School of Economics,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学经济学院,天津300071

出　　处：《科技进步与对策》2020年第6期137-146,共10页Science & Technology Progress and Policy

基　　金：国家社会科学基金项目(15BJY088)。

摘　　要：法律制度完善可以通过不同途径推动我国经济高质量发展,相关法律制度变革可以提升财务风险较小的企业创新产出水平。利用2009年专利法修改实施这一难得的准自然实验,通过构造双重差分模型对法律修改与企业创新的因果关系进行实证检验。结果发现,拥有较低财务风险的企业,企业创新产出数量和质量均显著提升。进一步分析表明,此次法律修改对负债规模更小、偿债能力更强、盈利能力更强、股权集中度更高的企业而言,其企业创新提升作用更显著。同时,研究结论为《中华人民共和国专利法》的第四次修改提供了法律变革层面上的经验证据,为法律修改如何影响实体经济发展提供了有价值的研究思路。The improvement of Improvement of the legal systemhas accelerated the development of China's high-quality economy.The relevant legal system reform has improved the innovation output level of enterprises which are in lower financial risk.This paper finds 2009 patent law amendment is a hard-won quasi natural experiment,we established a difference in difference model to empirically examine the causal relationship between law modification and enterprise innovation.The results show that enterprises with lower financial risks have significantly increased output in both quantity and quality.Further analysis shows that the legal change has more obvious acceleration effect on the innovation of enterprises which are with smaller the scale of debt,stronger the solvency,stronger profitability or higher the concentration of ownership.The results of this paper provides empirical evidence for the fourth amendment of patent law that can play a positive and effective role in legal reform,also provides valuable research ideas on how the law modification affects the development of real economy.

关 键 词：专利法修改 企业创新水平 财务风险 双重差分模型 

分 类 号：F273.1[经济管理—企业管理]