Yeah, this is not the Prisoner's Dilemma! The way they described it the table looks like this: Player 1, Player 2 C D ____ ____ C|1, 1|0, 1|

Yeah, this is not the Prisoner's Dilemma! The way they described it the table looks like this: Player 1, Player 2 C D ____ ____ C|1, 1|0, 1| D|1, 0|0, 0| In this case, both cooperate and defect are Nash equilibrium strategies, which is NOT the case for a Prisoner's Dilemma. In order for this to be the Prisoner's Dilemma, only defect must be in NE, see: http://en.wikipedia.org/wiki/Prisoner%27s_dilemma http://en.wikipedia.org/wiki/Prisoner%27s_dilemma