Three experimental studies examined the relationship between altruistic behavior and the
emergence of status hierarchies within groups. In each study, group members were …

A persistent puzzle in the social and biological sciences is the existence of prosocial
behavior, actions that benefit others, often at a cost to oneself. Recent theoretical models …

Two explanations of why shared group membership promotes cooperation in social
dilemmas were compared. According to the fear—greed model of social identity proposed …

In each of two experiments, some participants chose between allocation of resources to the
group as a whole or to themselves alone (egoism condition); some chose between …

We report on a two-stage experiment in which (i) we first elicit the social network within a
section of undergraduate students and (ii) we then measure their altruistic attitudes by …

Although theoretical considerations suggest that a considerable portion of human altruism is
driven by concerns about reputation, few experimental studies have examined the …

The benefits of a good reputation can help explain why some individuals are willing to be
altruistic in situations where they will not receive direct benefits. Recent experiments on …

Prosociality is considered a virtue. Those who care for others are admired, whereas those
who care only for themselves are despised. For one's reputation, it pays to be nice. Does it …

I have long lamented the tendency of social scientists who study the determinants of
prosocial behaviors to claim they are studying altruism (see, eg, Krebs, 1970, 1982; Krebs & …

In four experiments, we found that the presence of self-interest in the charitable domain was
seen as tainting: People evaluated efforts that realized both charitable and personal benefits …