Approximate robustness of equilibrium to incomplete information

  title={Approximate robustness of equilibrium to incomplete information},
  author={Ori Haimanko and Atsushi Kajii},
  journal={Int. J. Game Theory},
We relax the Kajii and Morris (1997a) notion of equilibrium robustness by allowing approximate equilibria in close incomplete information games. The new notion is termed “approximate robustness”. The approximately robust equilibrium correspondence turns out to be upper hemicontinuous, unlike the (exactly) robust equilibrium correspondence. As a corollary of the upper hemicontinuity, it is shown that approximately robust equilibria exist in all two-player zero-sum games and all two-player two… CONTINUE READING

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