We design a decision-making scenario experiment on Facebook to measure subjects’ altruism and trust toward attendees of a religious service, a fitness class and a local music performance. Secular and religious subjects alike display significantly more altruism and trust toward the synagogue...

Gift giving is thought to be welfare decreasing. This claim rests on two key assumptions, namely, full information as to the whereabouts of all goods and the ability to reach the stores that carry desired goods costlessly. We replace these two assumptions with the more realistic assumptions of...