Trade in green patents: How do green technologies flow in China?

Ying Jiang, Jin Xu () and Guofei Wang
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Ying Jiang: Southwest Jiaotong University
Jin Xu: Southwest Jiaotong University
Guofei Wang: Southwest Jiaotong University

The Journal of Technology Transfer, 2024, vol. 49, issue 3, No 2, 823-856

Abstract: Abstract Green technology transfer can help narrow the regional differences in green innovation, thereby contributing to a more coordinated green development. This study uses the social network analysis approach to explore the characteristics and regional differences in green technology diffusion in mainland China from 1985 to 2021. A unique dataset of patent transactions was used to construct green technology transfer networks. The findings demonstrate that energy-related technologies had the highest demand in the market. In addition, private sectors, especially multinational enterprises, were the most active network entities, whereas universities played a limited role in diffusion. Moreover, green patent transactions were highly localized and presented regional disparities. Resource-based regions with high pollution had lower green technology flows and formed a path dependence, whereas a few developed regions served as influential spreaders. The network exhibited a core-periphery pattern and dis-assortativity, thus creating a Matthew effect and widening the regional gaps. The absorbers and beginners tended to form connections with bilateral spillover, while peripheral provinces faced delinked risks. These findings help us understand the regional disparities and diffusion patterns of green technologies in China, thus accelerating the diffusion of green technologies.

Keywords: Green technology diffusion; China; Patent licensing; Patent assignment; Social network analysis (search for similar items in EconPapers)
JEL-codes: O13 O33 Q55 R11 R12 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10961-023-10006-0

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