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Heterogeneity and Number of Players in Rent-Seeking, Innovation, and Patent-Race Games

In: Equilibrium Theory for Cournot Oligopolies and Related Games

Author

Listed:
  • Noriaki Matsushima

    (Osaka University)

  • Takeshi Yamazaki

Abstract

Many economists have studied rent-seeking contests, innovation tournaments, and patent-race games independently. These three seemingly different games are known to be strategically equivalent under some reasonable assumptions. In these classic games, it is assumed that the value of a prize, i.e. the gain from rent-seeking, achieving an innovation, or obtaining a patent, is exogenously given and does not depend on the number of players, so that an increase in the number of players decreases the winning rate of each player. However, if players engage in R&D and then set quantities à la Cournot, the value of the prize in general depends on the number of players. In this paper, we set up a model with one efficient player and identical inefficient players to analyze how an increase in heterogeneity among players or the number of players changes the wining rate of the efficient player. One of the main results is that if the number of players is larger than some critical value, which can be less than two, an increase in the number of inefficient players always increases the winning rate of the efficient player.

Suggested Citation

  • Noriaki Matsushima & Takeshi Yamazaki, 2016. "Heterogeneity and Number of Players in Rent-Seeking, Innovation, and Patent-Race Games," Springer Series in Game Theory, in: Pierre von Mouche & Federico Quartieri (ed.), Equilibrium Theory for Cournot Oligopolies and Related Games, pages 281-294, Springer.
    • Handle: RePEc:spr:spschp:978-3-319-29254-0_17
    DOI: 10.1007/978-3-319-29254-0_17
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