A dynamic model of patent portfolio races
AbstractWe propose a dynamic model of a patent portfolio race in an industry in which innovation is incremental. Two firms compete in prices and in research. We study the Markov perfect (closed-loop) equilibrium of the resulting differential game, identifying a steady state in which firms compete neck and neck. In this equilibrium, innovation rates are inefficiently high from the firms’ viewpoint. The firms are caught in a prisoners’ dilemma and so have an incentive not to enforce their patents aggressively in order to coordinate on a more “cooperative” equilibrium.
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Bibliographic InfoArticle provided by Elsevier in its journal Economics Letters.
Volume (Year): 117 (2012)
Issue (Month): 3 ()
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Web page: http://www.elsevier.com/locate/ecolet
Patent portfolios; Incremental innovation; Cross-licensing; Differential game;
Find related papers by JEL classification:
- L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
- O3 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights
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