Patents, Imitation and Licensing in an Asymmetric Dynamic R&D Race
R&D is an inherently dynamic process which involves different intermediate steps that need to be developed before the completion of the final invention. Firms are not necessarily symmetric in their R&D abilities; some may have advantages in early stages of the R&D process while others may have advantages in other stages of the process. The paper uses a simple two-firm asymmetric ability multistage R&D race model to analyse the effect of different types of patent policy regimes and licensing arrangement on the speed of innovation, firm value and consumers' surplus. The paper demonstrates the circumstances under which a weak patent protection regime, which facilitates free imitation of any intermediate technology, may yield a higher overall surplus than a regime that awards patent for the final innovation. This result holds even in cases where the length of the patent is optimally calculated.
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- Richard Gilbert & Carl Shapiro, 1990.
"Optimal Patent Length and Breadth,"
RAND Journal of Economics,
The RAND Corporation, vol. 21(1), pages 106-112, Spring.
- 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.
- Steve A. Lippman & Kevin F. McCardle, 1987. "Dropout Behavior in R&D Races with Learning," RAND Journal of Economics, The RAND Corporation, vol. 18(2), pages 287-295, Summer.
- Klemperer, Paul, 1990.
"How Broad Should the Scope of Patent Protection Be?,"
CEPR Discussion Papers
392, C.E.P.R. Discussion Papers.
- 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.
- Robert M. Hunt, 2002.
"Patentability, industry structure, and innovation,"
01-13, Federal Reserve Bank of Philadelphia.
- Maskin, Eric & Tirole, Jean, 2001.
"Markov Perfect Equilibrium: I. Observable Actions,"
Journal of Economic Theory,
Elsevier, vol. 100(2), pages 191-219, October.
- Eric Maskin & Jean Tirole, 1997. "Markov Perfect Equilibrium, I: Observable Actions," Harvard Institute of Economic Research Working Papers 1799, Harvard - Institute of Economic Research.
- Doraszelski, Ulrich, 2003. " An R&D Race with Knowledge Accumulation," RAND Journal of Economics, The RAND Corporation, vol. 34(1), pages 20-42, Spring.
- Kenneth Judd & Karl Schmedders & Sevin Yeltekin, .
"Optimal Rules for Patent Races,"
GSIA Working Papers
2006-E37, Carnegie Mellon University, Tepper School of Business.
- Christopher Harris & John Vickers, 1985. "Perfect Equilibrium in a Model of a Race," Review of Economic Studies, Oxford University Press, vol. 52(2), pages 193-209.
- Reinganum, Jennifer F., 1981.
"Dynamic games of innovation,"
Journal of Economic Theory,
Elsevier, vol. 25(1), pages 21-41, August.
- Ariel Pakes & Paul McGuire, 1992.
"Computing Markov Perfect Nash Equilibria: Numerical Implications of a Dynamic Differentiated Product Model,"
NBER Technical Working Papers
0119, National Bureau of Economic Research, Inc.
- Ariel Pakes & Paul McGuire, 1994. "Computing Markov-Perfect Nash Equilibria: Numerical Implications of a Dynamic Differentiated Product Model," RAND Journal of Economics, The RAND Corporation, vol. 25(4), pages 555-589, Winter.
- Ariel Pakes & Paul McGuire, 1992. "Computing Markov perfect Nash equilibria: numerical implications of a dynamic differentiated product model," Discussion Paper / Institute for Empirical Macroeconomics 58, Federal Reserve Bank of Minneapolis.
- James Bessen & Eric Maskin, 2006.
"Sequential Innovation, Patents, and Imitation,"
Economics Working Papers
0025, Institute for Advanced Study, School of Social Science.
- Fudenberg, Drew & Gilbert, Richard & Stiglitz, Joseph & Tirole, Jean, 1983. "Preemption, leapfrogging and competition in patent races," European Economic Review, Elsevier, vol. 22(1), pages 3-31, June.
- Denicolo, Vincenzo, 1999. "The optimal life of a patent when the timing of innovation is stochastic," International Journal of Industrial Organization, Elsevier, vol. 17(6), pages 827-846, August.
- Christopher Harris & John Vickers, 1987. "Racing with Uncertainty," Review of Economic Studies, Oxford University Press, vol. 54(1), pages 1-21.
- Reinganum, Jennifer F., 1989. "The timing of innovation: Research, development, and diffusion," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 14, pages 849-908 Elsevier.
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