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Intellectual Property Management

Research on the Impact of Intellectual Property Protection on the  Green Innovation Efficiency of Manufacturing Enterprises 

—A Two-stage Innovation Value Chain Perspective 

Su Ping1, 2 , Yu Han1

(1.Chongqing Intellectual Property School, Chongqing University of Technology, Chongqing 400054, China; 2.Research Center for Science and Technology Innovation and Intellectual Property, Chongqing University of  Technology, Chongqing 400054, China)

Abstract: Against the backdrop of the accelerating global transition towards green and lowcarbon development, green innovation has emerged as a pivotal driver for high-quality economic  growth. To delve deeper into the impact mechanisms of intellectual property protection on the  green innovation efficiency of manufacturing enterprises, this study utilizes panel data from Ashare listed manufacturing companies in China from 2009 to 2022. Adopting a two-stage innovation value chain perspective, the research segments green innovation efficiency into green technology R&D efficiency and green achievement transformation efficiency. Employing a two-way  fixed effects model and a mediation effects model, the study conducts an empirical analysis. The  findings reveal that intellectual property protection significantly enhances both green technology  R&D efficiency and green achievement transformation efficiency in manufacturing enterprises. Mechanism tests indicate that intellectual property protection indirectly improves green innovation efficiency by increasing R&D investment intensity and alleviating financing constraints. Heterogeneity analysis demonstrates that the promoting effect of intellectual property protection  on green innovation efficiency varies significantly across different types of enterprises, regions, and industries. Based on these findings, this study proposes the following policy recommendations. Firstly, further refine the intellectual property protection system and optimize the patent  approval process. Secondly, promote the construction of industry-university-research cooperation platforms to achieve resource sharing and technological collaboration. Thirdly, optimize the  financing ecosystem through deepened green finance reforms, including launching dedicated  low-interest loans and green bond issuance mechanisms to ensure sustained funding for green  technology adoption. Fourthly, implement differentiated policies in response to enterprise types  and regional heterogeneity to boost regional collaborative innovation capabilities and accelerate  the green and low-carbon transformation of the manufacturing industry. This study not only enriches the literature on the relationship between intellectual property protection and the green innovation efficiency of manufacturing enterprises, but also makes significant theoretical and practical contributions from multiple perspectives. Based on the research findings, it puts forward targeted policy recommendations, providing policymakers with theoretical and practical references. Committed to promoting the green innovation development of enterprises, this research holds  great theoretical and practical significance for optimizing the green innovation environment of  China's manufacturing industry, facilitating regional coordinated development, and achieving  the "dual carbon" strategic goals. 

Key words: intellectual property protection; green innovation efficiency; green technology  achievement transformation; two-stage innovation value chain