Leider, Stephen; Mobius, Markus; Rosenblat, Tanya; Do, … - 2007
social distances, but only one of these decisions is implemented. We decompose altruistic preferences into baseline altruism … towards strangers, and directed altruism towards friends. In order to separate the motives that are altruistic from the ones … that decision-makers vary widely in their baseline altruism, but pass at least 50 percent more surplus to friends as …