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 …

"warm glow", reputational concerns and (impure) altruism are important determinants of giving. Moreover, the unobservable …

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

important in many interactions, we study a theoretical model on reciprocity where a player's altruism depends on her perception … of the other player’s altruism towards herself. We analyze a sequential two-player contest and vary the second mover … empirically in a large scale online experiment and in the laboratory. In both experiments, the second mover’s lying propensity …

'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 …

literature to the literature on social preferences. Following Andersen et al. (2008), we design a laboratory experiment to … jointly elicit risk preferences and preferences for altruism. Consistent with theory, we find that the standard simplifying … assumptions about risk preferences lead to significantly biased estimates of altruism. This is particularly problematic when …