2.2.3. Third-Party Punishment Task

The fourth and final social dilemma task added a *third-party punishment* option to the *dictator game*. The subject is informed that she has been randomly matched to a pair of other subjects from the *dictator game*. One of the other subjects was assigned to the role of the *dictator* and chose to keep the entire endowment to herself1. The subject, who must decide on how much (if at all) to punish the *dictator* is endowed with DKK 50. For each DKK 1, the *third-party punisher* sacrifices, the *dictator* suffers a reduction in earnings of DKK 5. The *third-party punisher* must decide on how much to sacrifice between DKK 0 and DKK 20. By sacrificing DKK 20 of her own endowment, the *third-party punisher* can reduce the earnings of the *dictator* to DKK 0.
