摘要
创新是引领发展的第一动力,提高企业创新能力是国家创新发展的有效保证。“中国制造2025”提出了制造业企业创新能力的长期目标。本研究选取2015~2020年制造业上市公司作为研究样本,运用固定效应模型实证分析知识产权保护、融资约束、知识产权保护与融资约束交互对企业创新产出的影响。研究发现:知识产权保护与企业创新产出之间存在明显的倒“U”形关系;知识产权保护水平提高可以缓解企业融资约束促进企业创新产出的增加。对不同区域企业和不同所有权性质企业进行异质性分析,发现东部地区知识产权保护水平变化对创新产出的影响更显著,中部和西部地区融资约束对制造业企业创新产出的抑制作用显著比东部地区要强。融资约束对非国有企业的抑制作用强于国有企业,知识产权能够显著缓解融资约束对非国有企业创新产出的抑制作用。通过替换变量进行稳健性检验,结论与上述一致。
Innovation is the primary driving force for development,and improving enterprises'innovation capability is an effective guarantee for national innovation and development."Made in China 2025"puts forward the long-term goal of innovation capability of manufacturing enterprises.In this paper,listed manufacturing companies from 2015 to 2020 are selected as research samples,and the fixed-effect model is used to empirically analyze the impact of intellectual property protection,financing constraints,and the interaction of intellectual property protection and financing constraints on enterprise innovation output.The results show that there is an obvious inverted U-shaped relationship between intellectual property protection and innovation output.The improvement of intellectual property protection can alleviate the financing constraints of enterprises and promote the increase of enterprises'innovation output.By analyzing the heterogeneity of enterprises in different regions and with different ownership properties,it is found that the change of intellectual property protection level has a more significant impact on innovation output in the eastern region,and the inhibition effect of financing constraints on innovation output in the central and western regions is significantly stronger than that in the eastern region.The inhibition effect of financing constraints on non-state-owned enterprises is stronger than that of state-owned enterprises,and intellectual property rights can significantly alleviate the inhibition effect of financing constraints on innovation output of non-state-owned enterprises.The conclusion is consistent with the above conclusion through the robustness test of replacement variables.
作者
冯程程
张亚峰
闫文军
FENG Chengcheng;ZHANG Yafeng;YAN Wenjun(School of Public Policy and Management,University of Chinese Academy of Sciences,Beijing 100049)
出处
《科技促进发展》
2023年第3期182-191,共10页
Science & Technology for Development
关键词
企业创新产出
知识产权保护
融资约束
倒“U”形关系
enterprise innovation output
intellectual property protection
financing constraints
inverted U-shaped relation
作者简介
冯程程,在读博士研究生,研究方向:公共政策分析、知识产权管理;通讯作者:闫文军,博士,教授,研究方向:知识产权管理。
