quickly if we introduce two relevant features of social life into the experiment: (i) subjects can migrate across groups with …

and social norms, and trust. In a preregistered online experiment (n = 1,038), we find that biased institutions reduce …

). 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 …

punishment ; collective action ; public goods ; internet experiment …

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 …

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 …

it becomes scarce. In the second, restraint serves to conceal the actor's intrinsic motivation. In both cases, not …

, however, with a minority of workers report crowding in of motivation. Thus, the impact of performance pay might depend on the …