We characterize the class of symmetric two-player games in which tit-for-tat cannot be beaten even by very … sophisticated opponents in a repeated game. It turns out to be the class of exact potential games. More generally, there is a class … in this class is essentially unbeatable in exact potential games. Our results apply to many interesting games including …

We show that for many classes of symmetric two-player games, the simple decision rule “imitate-if-better” can hardly be … game or a quasiconcave game. Our results apply to many interesting examples of symmetric games including 2×2 games, Cournot … duopoly, price competition, public goods games, common pool resource games, and minimum effort coordination games. …

of evolutionary and learning processes in this game. Only the continuous best response dynamic uniquely selects the …

number of standard learning algorithms. The learning theories are (unbeknown to subjects) a best response process, fictitious … play, imitation, reinforcement learning, and a trial & error process. We test whether subjects try to influence those … and that all learning algorithms are subject to exploitation with the notable exception of imitation. The experiment was …

number of standard learning algorithms. The learning theories are (unbeknown to subjects) a best response process, fictitious … play, imitation, reinforcement learning, and a trial & error process. We test whether subjects try to influence those … and that all learning algorithms are subject to exploitation with the notable exception of imitation. The experiment was …

We show that for many classes of symmetric two-player games, the simple decision rule "imitate-the-best" can hardly be … that it can only be beaten by much in games that are of the rock-scissors-paper variety. Thus, in many interesting examples …, like 2x2 games, Cournot duopoly, price competition, rent seeking, public goods games, common pool resource games, minimum …

We show that in symmetric two-player exact potential games, the simple decision rule "imitate-if-better" cannot be … apply to many interesting games including examples like 2x2 games, Cournot duopoly, price competition, public goods games …, common pool resource games, and minimum effort coordination games. …

We show that in symmetric two-player exact potential games, the simple decision rule "imitate-if-better" cannot be … apply to many interesting games including examples like 2x2 games, Cournot duopoly, price competition, public goods games …, common pool resource games, and minimum effort coordination games. …

We show that for many classes of symmetric two-player games, the simple decision rule imitate-the-best can hardly be … that it can only be beaten by much in games that are of the rock-scissors-paper variety. Thus, in many interesting examples …, like 2x2 games, Cournot duopoly, price competition, rent seeking, public goods games, common pool resource games, minimum …

of evolutionary and learning processes in this game. Only the continuous best response dynamic uniquely selects the …