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Arms Races and Negotiations

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  • Sandeep Baliga
  • Tomas Sjostrom

Abstract

Two players simultaneously decide whether or not to acquire new weapons in an arms race game. Each player's type determines his propensity to arm. Types are private information, and are independently drawn from a continuous distribution. With probability close to one, the best outcome for each player is for neither to acquire new weapons (although each prefers to acquire new weapons if he thinks the opponent will). There is a small probability that a player is a dominant strategy type who always prefers to acquire new weapons. We find conditions under which the unique Bayesian-Nash equilibrium involves an arms race with probability one. However, if the probability that a player is a dominant strategy type is sufficiently small, then there is an equilibrium of the cheap-talk extension of the game where the probability of an arms race is close to zero. Copyright 2004, Wiley-Blackwell.
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Suggested Citation

  • Sandeep Baliga & Tomas Sjostrom, 2001. "Arms Races and Negotiations," Levine's Working Paper Archive 391749000000000005, David K. Levine.
  • Handle: RePEc:cla:levarc:391749000000000005
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