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Patent Scope and Technology Choice

Listed author(s):
  • Färnstrand Damsgaard, Erika

    ()

    (Research Institute of Industrial Economics (IFN))

This paper analyzes the effect of an increase in patent scope on R&D and innovation. It presents a model where patent scope affects an entrant firm's technology choice and thereby creates a trade-off between R&D investments and wasteful duplication of R&D. The model predicts that an increase in patent scope can increase the probability of innovation if the incumbent’s profit increase from innovation is large and the patented technology has a small advantage over the alternative technology. However, when the model is extended to Stackelberg competition or licensing, the benefit of a broad patent scope to a large extent disappears.

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File URL: http://www.ifn.se/wfiles/wp/wp792.pdf
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Paper provided by Research Institute of Industrial Economics in its series Working Paper Series with number 792.

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Length: 39 pages
Date of creation: 03 Mar 2009
Handle: RePEc:hhs:iuiwop:0792
Contact details of provider: Postal:
Research Institute of Industrial Economics, Box 55665, SE-102 15 Stockholm, Sweden

Phone: +46 8 665 4500
Fax: +46 8 665 4599
Web page: http://www.ifn.se/
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  1. Joseph Zeira, 2011. "Innovations, patent races and endogenous growth," Journal of Economic Growth, Springer, vol. 16(2), pages 135-156, June.
  2. Luís Cabral & Ben Polak, 2004. "Does Microsoft Stifle Innovation? Dominant Firms, Imitation, and R&D Incentives," Working Papers 06, Portuguese Competition Authority.
  3. Paul Klemperer, 1990. "How Broad Should the Scope of Patent Protection Be?," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 113-130, Spring.
  4. Nancy T. Gallini, 1992. "Patent Policy and Costly Imitation," RAND Journal of Economics, The RAND Corporation, vol. 23(1), pages 52-63, Spring.
  5. Kitch, Edmund W, 1977. "The Nature and Function of the Patent System," Journal of Law and Economics, University of Chicago Press, vol. 20(2), pages 265-290, October.
  6. Richard Gilbert & Carl Shapiro, 1990. "Optimal Patent Length and Breadth," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 106-112, Spring.
  7. James Bessen & Eric Maskin, 2009. "Sequential innovation, patents, and imitation," RAND Journal of Economics, RAND Corporation, vol. 40(4), pages 611-635.
  8. Reinganum, Jennifer F, 1983. "Uncertain Innovation and the Persistence of Monopoly," American Economic Review, American Economic Association, vol. 73(4), pages 741-748, September.
  9. Lerner, Josh, 1995. "Patenting in the Shadow of Competitors," Journal of Law and Economics, University of Chicago Press, vol. 38(2), pages 463-495, October.
  10. Nancy T. Gallini, 2002. "The Economics of Patents: Lessons from Recent U.S. Patent Reform," Journal of Economic Perspectives, American Economic Association, vol. 16(2), pages 131-154, Spring.
  11. Federico Etro, 2004. "Innovation by leaders," Economic Journal, Royal Economic Society, vol. 114(495), pages 281-303, 04.
  12. Richard Blundell & Rachel Griffith & John van Reenen, 1999. "Market Share, Market Value and Innovation in a Panel of British Manufacturing Firms," Review of Economic Studies, Oxford University Press, vol. 66(3), pages 529-554.
  13. Pankaj Tandon, 1983. "Rivalry and the Excessive Allocation of Resources to Research," Bell Journal of Economics, The RAND Corporation, vol. 14(1), pages 152-165, Spring.
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