Technology entry in the presence of patent thickets

Bronwyn Hall, Georg von Graevenitz and Christian Helmers

Oxford Economic Papers, 2021, vol. 73, issue 2, 903-926

Abstract: We analyse how patent thickets affect entry into patenting. A model of entry into patenting that allows for variation in technological opportunity, technological complexity and the extent of patent thickets is developed and analysed. Using UK data we then show that patent thickets are associated with a reduction of first time patenting in a technology controlling for the level of technological complexity and opportunity. Technologies characterized by more technological complexity and opportunity attract more entry into patenting. Our evidence indicates that patent thickets raise entry costs, which leads to less entry into technologies regardless of a firm’s size.

JEL-codes: K11 L20 O31 O34 (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (12)

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Related works:
Journal Article: Technology Entry in the Presence of Patent Thickets (2021)
Working Paper: Technology Entry in the Presence of Patent Thickets (2017)
Working Paper: Technology entry in the presence of patent thickets (2016)
Working Paper: Technology Entry in the Presence of Patent Thickets (2015)
Working Paper: Technology Entry in the Presence of Patent Thickets (2015)
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