Abstract
A 2 × 2 × 2 factorial design with repeated measures was employed in two experiments to determine the effects of: (a) game structure, (PDG vs CDG); (b) range of pay-off (equal vs unequal); (c) strategy of the other (cooperative vs defective) on the frequency of cooperative responses in 2 × 2 mixed-motive games. Analysis showed significant effects for game structure, strategy of the other, and all the two-way interaction effects (p = .001) but no significant effect for range of pay-off. The frequency of cooperative responses was higher in the CDG than in the PDG. In the PDG, defective strategy generated defection, and cooperative strategy also generated defection. In the CDG, defective strategy generated cooperation while cooperative strategy generated defection.
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