Fragmented property rights and R&D competition
Where product innovation requires several complementary patents, fragmented property rights can be a factor that limits firmsâ€™ willingness to invest in the development and commercialization of new products. This paper studies multiple simultaneous R&D contests for complementary patents and how they interact with patent portfolios that firms may have acquired already. We also consider how this interaction and the intensity of the contests depends on the type of patent trade regimes and the product market equilibria that result from these regimes. We solve for the contest equilibria and show that the multiple patent product involves an important hold-up problem that considerably reduces the overall contest effort.
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- Shapiro, Carl, 2000.
"Navigating the Patent Thicket: Cross Licenses, Patent Pools, and Standard-Setting,"
Competition Policy Center, Working Paper Series
qt4hs5s9wk, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
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- Carl Shapiro, 2003. "Navigating the Patent Thicket: Cross Licenses, Patent Pools, and Standard-Setting," Law and Economics 0303005, EconWPA.
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9175, National Bureau of Economic Research, Inc.
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Springer;Society for the Advancement of Economic Theory (SAET), vol. 7(2), pages 283-290.
- Rosemarie Ham Ziedonis, 2004. "Don't Fence Me In: Fragmented Markets for Technology and the Patent Acquisition Strategies of Firms," Management Science, INFORMS, vol. 50(6), pages 804-820, June.
- Vincenzo Denicolo, 2002. "Sequential innovation and the patent-antitrust conflict," Oxford Economic Papers, Oxford University Press, vol. 54(4), pages 649-668, October.
- Baye, Michael R. & Hoppe, Heidrun C., 2003. "The strategic equivalence of rent-seeking, innovation, and patent-race games," Games and Economic Behavior, Elsevier, vol. 44(2), pages 217-226, August.
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