2-player matrix for the Prisoner's dilemma:
Here, the payoff is one's sentence (time in jail) - lower is better.
|Cooperate||6 months, 6 months||10 years, no time|
|Defect||no time, 10 years||5 years, 5 years|
2-player matrix for the Game of Chicken:
Here, the higher the payoff, the better. "Cooperation" means swerving.
|Cooperate||0, 0||-1, +1|
|Defect||+1, -1||-20, -20|