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.|
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- Kenneth L. Judd, 2003.
"Closed-loop equilibrium in a multi-stage innovation race,"
Springer, vol. 21(2), pages 673-695, 03.
- Kenneth L. Judd, 1985. "Closed-Loop Equilibrium in a Multi-Stage Innovation Race," Discussion Papers 647, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Reinganum, Jennifer F., .
"Dynamic Games of Innovation,"
287, California Institute of Technology, Division of the Humanities and Social Sciences.
- Lee, Tom & Wilde, Louis L, 1980. "Market Structure and Innovation: A Reformulation," The Quarterly Journal of Economics, MIT Press, vol. 94(2), pages 429-36, March.
- Harris, Christopher & Vickers, John, 1985. "Perfect Equilibrium in a Model of a Race," Review of Economic Studies, Wiley Blackwell, vol. 52(2), pages 193-209, April.
- 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.
- Shapiro, Carl, 1985. "Patent Licensing and R&D Rivalry," American Economic Review, American Economic Association, vol. 75(2), pages 25-30, May.
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