In a n experiment, we test the impact of quality certificates on donation s to a charity. Compared to the control group … charity . The choice of donation values over time shows strong persistence such that the difference between the two groups …

In an experiment, we test the impact of quality certificates on donations to a charity. When presented with a quality …

A donation may have ambiguous costs or ambiguous benefits. Behavior in a laboratory experiment suggests that …

preferences. We obtain a uniquely comprehensive characterization of donation motives using an experiment that varies treatments … using targeted give-aways to certain donors. A simpler fundraising strategy using only the social dimension of donor …

opportunity to donate to a local charity. Group compensation and public announcement of performance have little effect on work … to charity, and group compensation significantly increases the share donating. The results suggest that interpersonal …

the effects by income source can be explained by social norms. Our first experiment induces random variation in both … earned income and windfall bonuses and shows that only bonuses increases charitable donations. The second experiment uses an … elicited in the second experiment match the donation patterns in the first experiment both overall and across subject …

, we conducted a tennis field experiment. In the experiment, we also varied the payment schemes (individual, team …