overestimation of internal motives such as fairness and altruism. The experimental data illustrate the importance of combining …

consistent with trust elicited using attitudinal measures and with actual trustworthiness. Risk aversion and altruism do not …

The 2004 Indian Ocean tsunami was an extremely destructive event in Aceh, Indonesia, killing over 160,000 people and … affect human capital in the short and long term. We use longitudinal data from the Study of the Tsunami Aftermath and … these results likely reflect, at least in part, the successful post-tsunami reconstruction program, they also establish …

effect on utility. The third class of models includes those of reciprocity in which people’s altruism depends on whether … others act kindly or unkindly toward them. In the fourth type of model, inequality has a profound effect on altruism, with … specifications of altruism might have to be modified to take into account how people behave when they are able to transfer lotteries …

contradict the common economic assumption that people maximize their own payoffs. Here we take the approach that human altruism … relationships based on reciprocity. We test whether relational models theory can explain altruism in the dictator game, a standard … method for observing altruism. For each relational model, we manipulate its key variable (need, power, or reciprocity) by …

We explore the extent to which altruism, as measured by giving in a dictator game (DG), accounts for play in a noisy … to be the key determinant of how play varies with the parameters of the repeated game. In particular, altruism does not …

Recent research suggests that altruism can be surprisingly tenuous; minor situational variations can turn altruism on … explanations of altruism and raises many questions about its stability. Is everyone's altruism prone to such collapse? If not, how … can one predict it? We show that some people exhibit more stable altruism, predicting who is who weeks prior to the task …