Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/289451 
Year of Publication: 
2024
Series/Report no.: 
ZEW Discussion Papers No. 24-016
Publisher: 
ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung, Mannheim
Abstract: 
We study the evolution of patenting in China from 1985-2019. We use a Large Language Model to measure patent importance based on patent abstracts and classify patent ownership using a comprehensive business registry. We highlight four insights. First, average patent importance declined from 2000-2010 but has increased more recently. Second, private Chinese firms account for most of patenting growth whereas overseas patentees have played a diminishing role. Third, patentees have greatly reduced their dependence on foreign knowledge. Finally, Chinese and foreign patenting have become more similar in technological composition, but differences persist within technology classes as revealed by abstract similarities.
Subjects: 
China
innovation
patents
large language model
JEL: 
O30
Document Type: 
Working Paper

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