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

preference in one experiment and make a point prediction about the contribution to a repeated public good. This allows for a … predicted contributions, because they contribute in the first half of the experiment. We also show that the interaction of …

altruism, reputational concerns, and material incentives. We present an analysis of a unique data set that combines an … experimental measure of altruism, surveyed measures of other factors including reputational concerns, and call records from … explanations, we find that altruism and reputational concerns are positively associated with the decision to volunteer. Moreover …

An explanation for motivation crowding-out phenomena is developed in a social preferences framework. Besides selfish … that norm. High-powered incentives may crowd out motivation as pessimism about the norm is conveyed. But by choosing fixed …

minimum altruism, in which child labor in a given family is judged relative to a specific social standard. Under this … criterion, child labor is exploitative only in families where the parent (or guardian) displays insufficient altruism towards …