知识产权保护与中国企业的成本加成率——以市级专利代办处设立为例  

Intellectual Property Protection and Chinese Firms'Markup:Evidence from the Establishment of Municipal Patent Agency

作　　者：卜文超 蒋殿春[3,4] Bu Wenchao;Jiang Dianchun(School of Economics,Nankai University,Tianjin 300071,China;School of Social and Political Sciences,University of Glasgow,Glasgow G128QQ,UK;The Laboratory for Economic Behaviors and Policy Simulation,Nankai University,Tianjin 300071,China;Center for Transnationals'Studies,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学经济学院,300071 [2]格拉斯哥大学社会与政治科学学院,G128QQ [3]南开大学经济行为与政策模拟实验室,300071 [4]南开大学跨国公司研究中心,300071

出　　处：《南开经济研究》2024年第2期141-159,共19页Nankai Economic Studies

基　　金：教育部人文社科重点研究基地重大项目“数字型跨国公司的理论和政策研究”(22JJD790039);教育部哲学社科实验室专项基金项目“中美科技博弈及中国高科技产业技术发展”(H0122706)的资助。

摘　　要：本文基于异质性企业理论模型,探讨了知识产权保护增强影响企业成本加成率的微观机制。在此基础上,运用1998—2015年工业企业数据库,将市级层面专利代办处的设立作为拟自然实验,采用跨期双重差分方法,对理论假说进行了验证。实证表明,知识产权保护对企业的成本加成率有显著的正向影响,并且这一影响具有时间持续性。此外,知识产权保护的影响存在门槛效应,只有创新能力高于一定门槛的企业,方能在知识产权保护增强时提高成本加成率。机制分析表明,知识产权保护的“创新效应”和“竞争效应”会影响企业的成本加成率。知识产权保护增强可以提高创新能力,降低企业竞争程度,从而有利于我国企业的成本加成率提升。Based on the framework of heterogeneous firm theory model,this paper discusses the micro mechanism of the enhancement of intellectual property protection on firms'markup.Furthermore,using the data of Chinese industrial enterprise database from 1998 to 2015,this paper takes the establishment of municipal patent agency as a quasi-natural experiment and uses intertemporal difference-in-differences method to verify the conclusion of theoretical model.The results show that,the protection of intellectual property rights has a significant positive impact on the firms'markup,and this effect is time-lasting.In addition,the impact of intellectual property protection has a threshold effect.Only enterprises with innovation ability higher than a certain threshold can increase the markup when intellectual property protection is enhanced.Mechanism analysis shows that the"innovation effect"and"competition effect"of intellectual property protection will affect the enterprises'markup.The enhancement of intellectual property protection can improve the innovation ability and reduce the degree of enterprise competition,which is conducive to the increase of Chinese enterprises'markup.

关 键 词：知识产权保护 成本加成率 创新效应 竞争效应 门槛效应 

分 类 号：F425[经济管理—产业经济] F752.62F204