A Theory of Patent Portfolios
成果类型：
Article
署名作者：
Choi, Jay Pil; Gerlach, Heiko
署名单位：
Michigan State University; Yonsei University; University of Queensland
刊物名称：
AMERICAN ECONOMIC JOURNAL-MICROECONOMICS
ISSN/ISSBN：
1945-7669
DOI：
10.1257/mic.20150003
发表日期：
2017
页码：
315-351
关键词：
摘要：
This paper develops a theory of patent portfolios in which firms accumulate an enormous amount of related patents, which makes it impractical to develop new products that avoid inadvertent infringement. We show that patent peace arises if product market competition is weak and patent portfolios are either sufficiently weak or sufficiently strong with comparable size. An increase in one firm's patent portfolio reduces the innovation incentives of its rivals but does not necessarily increase its own. Firms with larger patent portfolios have stronger incentives to acquire additional patents, while consumers may be better off if firms with weaker portfolios acquire them.
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