Subjects donate individually (control group) or in pairs (treatment group). Thosein pairs reveal their donation decision to each other. Average donations in thetreatment group are significantly higher than in the control group. Pairedsubjects have the opportunity to revise their donation decision afterdiscussion. Pair members shift toward each others’ initial decisions.Subjects are happier with their decision when their donations are larger, butthose in pairs are less happy, controlling for amount donated. These findingssuggest reluctant altruism due to peer pressure in charitable giving.