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Dynamic R&D Competition

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  • Grossman, Gene M
  • Shapiro, Carl

Abstract

The authors study a simple, two-stage, stochastic patent race involving two firms. They examine the behavior of the participants as they gain the lead or fall behind in the race. The authors 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. They 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. Copyright 1987 by Royal Economic Society.

Suggested Citation

  • Grossman, Gene M & Shapiro, Carl, 1987. "Dynamic R&D Competition," Economic Journal, Royal Economic Society, vol. 97(386), pages 372-387, June.
    • Handle: RePEc:ecj:econjl:v:97:y:1987:i:386:p:372-87
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    References listed on IDEAS

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    1. Gene M. Grossman & Carl Shapiro, 1986. "Optimal Dynamic R&D Programs," RAND Journal of Economics, The RAND Corporation, vol. 17(4), pages 581-593, Winter.
    2. 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, March.
    3. Reinganum, Jennifer F., 1981. "Dynamic games of innovation," Journal of Economic Theory, Elsevier, vol. 25(1), pages 21-41, August.
    4. Shapiro, Carl, 1985. "Patent Licensing and R&D Rivalry," American Economic Review, American Economic Association, vol. 75(2), pages 25-30, May.
    5. Tom Lee & Louis L. Wilde, 1980. "Market Structure and Innovation: A Reformulation," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 94(2), pages 429-436.
    6. Christopher Harris & John Vickers, 1985. "Perfect Equilibrium in a Model of a Race," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 52(2), pages 193-209.
    7. 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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