Time spent in custody is given as a negative number. Each player still want's the largest payoff possible, or the least time spent locked up.

   Each prisoner has two possbile strategies, confess to the crime and implicate the other player, or deny any involvement.

   If both players confess they will be found guilty but will receive reduced sentences for cooperating, so they will spend three years (payoff of -3) in prison. If both deny any involvement they are held in jail for 6 months (payoff of -1/2) until trial at which time the charges are dismissed. If only one confesses, that prisoner goes free and the other is found guilty and is sentenced to 10 years (payoff of -10) in prison. How do we predict how the prisoners will behave?

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