Mailath, George J.; Postlewaite, Andrew; Samuelson, Larry - 2003
point of deviation from the equilibrium, must be within of a best E response. This concept implies, but is stronger than …, Radner's ex ante perfect E-equilibrium. A strategy profile is a contemporaneous perfect E-equilibrium of a game if it is a … subgame perfect equilibrium in a perturbed game with nearly the same payoffs, with the converse holding for pure equilibria …