Question

In the prisoner’s dilemma game, the tit-for-tat strategy is a Nash equilibrium when the game is played a single time.

true/false?

Answer 1

True

In the prisoner’s dilemma game, the tit-for-tat strategy is a Nash equilibrium when the game is played in single time.

Tit for tat is a game-theory strategy subject to a payoff matrix like that of a prisoner's dilemma. Tit for tat was introduced by Anatol Rapoport, who developed a strategy in which each participant in an iterated prisoner's dilemma follows a course of action consistent with his opponent's previous turn.

Nash equilibrium is a concept within game theory where the optimal outcome of a game is where there is no incentive to deviate from their initial strategy. More specifically, the Nash equilibrium is a concept of game theory where the optimal outcome of a game is one where no player has an incentive to deviate from his chosen strategy after considering an opponent's choice. Nash equilibrium does not give an optimal solution for repeated games.