Cooperators and reciprocators: A within-subject analysis of pro-social behavior

•We present a within-subject analysis of pro-social behavior.•Subjects play a public-good and a gift-exchange game.•Cooperators reciprocate higher wages, but not non-cooperators.

We perform a within-subject analysis of pro-social behavior in the public-good and gift-exchange game. We find that participants classified as cooperators in the public-good game tend to reciprocate higher wages in the gift-exchange game with higher levels of effort. Non-cooperators do not exhibit such tendency. Both types offer similar wages.