Dynamic R&D Competition
We study a simple, two-stage, stochastic patent race involving two firms. We examine the behavior of the participants as they gain the lead or fall behind in the race. We find that the leader engages in R&D more intensively than does the follower, and that both firms intensify their efforts if the follower does catch up with the leader. We also analyze (1) the attractiveness of licensing, whereby the leader shares his results with the follower,(2) a policy of issuing patents for intermediate research results, and (3) the effects of research joint ventures, whereby the firms coordinate their initial research efforts and share their results.
|Date of creation:||Aug 1985|
|Date of revision:|
|Publication status:||published as Grossman, Gene M. and Carl Shapiro. "Dynamic R&D Competition," Economic Journal, Vol. 97, No. 386, June 1987.|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
Web page: http://www.nber.org
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- Reinganum, Jennifer F., .
"Dynamic Games of Innovation,"
287, California Institute of Technology, Division of the Humanities and Social Sciences.
- 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.
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- Kenneth L. Judd, 1985.
"Closed-Loop Equilibrium in a Multi-Stage Innovation Race,"
647, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Kenneth L. Judd, 2003. "Closed-loop equilibrium in a multi-stage innovation race," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 21(2), pages 673-695, 03.
- Tom Lee & Louis L. Wilde, 1980. "Market Structure and Innovation: A Reformulation," The Quarterly Journal of Economics, Oxford University Press, vol. 94(2), pages 429-436.
- 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.
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