A strategy that limits defection in a repeated prisoner's dilemma game is called
A) a Nash equilibrium.
B) tit-for-tat.
C) a cartel.
D) an ultimatum bargaining game.
E) an incredible promise.

Question

Quizplus · Accepted Answer

Tit-for-tat is a strategy in which a player consistently cooperates on the first move and then copies the opponent's last move in subsequent moves. This has been shown to be an effective strategy in limiting the likelihood of defection in a repeated prisoner's dilemma game. It encourages cooperation by rewarding it and punishing defection.

A Strategy That Limits Defection in a Repeated Prisoner's Dilemma