cities to conduct a field experiment with roughly 350 donation appeals. We induce spatial differentiation by varying the …

.g., discounting, risk aversion and altruism) and most cultural traits, social norms, and ideological tenets ( e.g., attitudes towards …

gap. We test this prediction using a laboratory experiment that varies whether the decision to compete, and its outcome …

large-scale experiment with a heterogeneous population sample from Germany. The majority of experimental participants …

subsequent charitable giving. To do so, we conduct a two-period artefactual field experiment to study repeated donation decisions …

experiment, participants complete real-effort tasks and then are randomly assigned a high or low pay rate per correct answer to …

In a field experiment with 341 participants, we study whether social comparisons, either in isolation or in combination …

an anonymous treatment where neither player is told at the end of the experiment which decision was selected for payment … future. We can decompose altruistic preferences into baseline altruism towards any partner and directed altruism towards … friends. Decision makers vary widely in their baseline altruism, but pass at least 50 percent more surplus to friends compared …