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Unformatted text preview: rounds?) B) Suppose that Player 2 is using a grim trigger strategy, where he will cooperate so long as Player 1 cooperates, but if Player 1 ever defects, Player 2 will defect forever. What is the highest expected total payo that Player 1 could get if he plays defect on the rst move? Is there a Nash equilibrium in which both players play the grim trigger strategy? Explain your answer. C) Suppose that Player 2 plays a titfortat strategy in which he cooperates on the rst move and in all later periods he uses the same action that Player 1 took on the preceding move. What would be the expected payo to Player 1 if he played Defect on his rst move and then played cooperate in all future moves? Is there a Nash equilibrium in which both players play the titfortat strategy? Explain your answer. 1...
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 Fall '08
 Charness,G

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