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The Three Parts of this Tutorial
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A Single-Agent Sequential Decision Problem
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Representation and Strategies in a Sequential Game
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Non-Credible Threats
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Sub-Game Perfect Equilibria
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The Centipede Game
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Cooperation in the Infinitely Repeated Prisoner's Dilemma
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Framing Bias
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Ultimatum Game
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The Level-k Model
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Level-k in the Beauty Contest Game
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Solving Static Games with Gambit
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Solving Dynamic Games with Gambit
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5.1 Cooperation in the Infinitely Repeated Prisoner's Dilemma » Quiz Solution
True or False: The strategy "Always Confess" for both players is an equilibrium in the infinitely repeated prisoner's dilemma.
(a) True
(b) False
Explanation : If one of the players is always confessing, regardless of what the other player is doing, then neither player has anything to gain by not confessing (i.e. there is no "punishment" for confessing). Therefore, "Always Confess" by both players is an equilibrium strategy.