behavior over time and across situations. We tackle this task with an experiment and a structural model of preferences that …

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 …

). Agents differ in their motivation to exert social effort. Our model predicts that lowering incentives for selfish effort in … prediction in a lab experiment allowing us to cleanly separate the selection effect from other effects of low incentives. Results …

We conduct a large-scale survey experiment in nine European countries to study how priming a major crisis (COVID-19 …), common economic interests, and a shared identity influences altruism, reciprocity and trust of EU citizens. We find that … priming the COVID-19 pandemic increases altruism and reciprocity towards compatriots, citizens of other EU countries, and non …

's behavior as a signal of how the latter would treat her if they met? In order to measure the relative importance of the altruism … than an act of altruism …