Patent citations reexamined

Autor: Jeffrey M. Kuhn, Kenneth Younge, Alan C. Marco
Rok vydání: 2020
Předmět:
Zdroj: The RAND Journal of Economics. 51:109-132
ISSN: 1756-2171
0741-6261
Popis: Many studies rely on patent citations to measure intellectual heritage and impact. In this article, we show that the nature of patent citations has changed dramatically in recent years. Today, a small minority of patent applications are generating a large majority of patent citations, and the mean technological similarity between citing and cited patents has fallen considerably. We replicate several well-known studies in industrial organization and innovation economics and demonstrate how generalized assumptions about the nature of patent citations have misled the field.
Databáze: OpenAIRE
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