Gametheory Practice question

6. Suppose the following game is repeated infinitely. The players have a common discount factor S, where 0 ,, there is an equilibrium of the infinitely repeated game in which players alternate between (D, C) and (C, D), starting with (D, C) in the first period. [8 marks] [Hint: Player 1 has no incentive to deviate in period 0 or any other even pe-riods when (D, C) is being played. Similarly, player 2 has no incentive to deviate in odd periods when (C, D) is being played. So the only possible devia-tions are by player 1 in odd periods and by player 2 in even periods. Given that the game is symmetric, if we can prevent a deviation by 1, that would also work for preventing deviation by 2.]