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The best strategy in Prisoner's Dilemma is to cheat when:

  • A.You play the game several times with different opponent
  • B.You play the game several times with the same opponent
  • C.Never, cheating is wrong
  • D.You play the game once

Answer: D

In a one shot prisoner's dilemma the dominant strategy for each player is to cheat (confess), because it gives the better pay off whatever the other does. When the game is repeated with the same opponent, cheating invites retaliation and cooperation can be sustained. So cheating is the best strategy when the game is played once. The answer is you play the game once, option D. In a repeated game with the same person, a player who cheats can be punished, which makes cooperation worthwhile.

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