Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In this paper we present a lab-in-the-field experiment with a large and diverse sample to compare charitable donations when individuals decide for themselves only and when they decide as a group representative. In contrast to the previous literature, we find that individuals make greater charitable contributions when they decide as a group representative than when they decide alone. This result demonstrates that being responsible for a group does not always lead to more selfish behavior.