Carbonell-Nicolau, Oriol - In: Games and Economic Behavior 71 (2011) 1, pp. 23-48
We provide sufficient conditions for a (possibly) discontinuous normal-form game to possess a pure-strategy trembling-hand perfect equilibrium. We first show that compactness, continuity, and quasiconcavity of a game are too weak to warrant the existence of a pure-strategy perfect equilibrium....