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Strategic patenting and software innovation

Noel, Michael D. and Schankerman, Mark (2006) Strategic patenting and software innovation. 5701. Centre for Economic Policy Research, London, UK.

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Identification Number: 5701

Abstract

Strategic patenting is widely believed to raise the costs of innovating, especially in industries characterised by cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and the fragmentation of patent rights ('patent thickets') which increases the transaction costs of enforcement. We develop a model that incorporates both effects, together with R&D spillovers. Using panel data for the period 1980-99, we find evidence that both strategic patenting and R&D spillovers strongly affect innovation and market value of software firms.

Item Type: Monograph (Discussion Paper)
Official URL: http://www.cepr.org
Additional Information: © 2006 Michael Noel and Mark Schankerman
Subjects: T Technology > T Technology (General)
K Law > K Law (General)
Sets: Collections > Economists Online
Departments > Economics
Research centres and groups > Suntory and Toyota International Centres for Economics and Related Disciplines (STICERD)
Date Deposited: 27 May 2008 10:55
Last Modified: 01 Oct 2010 08:54
URI: http://eprints.lse.ac.uk/id/eprint/5078

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