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Instructions

In this study, you will be randomly and anonymously paired with another participant. Each of you simultaneously and privately chooses whether you want to cooperate or defect. Your payoffs will be determined by the choices of both as below:

In each cell, the amount to the left is the payoff for you and to the right for the other participant.

The Other Participant
Cooperate Defect
You Cooperate 200 points, 200 points 0, 300 points
Defect 300 points, 0 100 points, 100 points