teenagers do not. The evidence is strongly consistent with the child-cycle pattern. Thus, while altruism drives some giving, the …

To understand the "pure" incentives of altruism, economic laboratory research on humans almost always forbids … communication between subjects. In reality, however, altruism usually requires interaction between givers and receivers, which … altruism are built on human sociality. We experimentally examine communication in which one subject allocates $10 between …

concern for other people's welfare (altruism) in the process of making high profits. Even with few truly altruistic firms, an …

private or government hospitals. Extending our model to include patient heterogeneity and impure altruism (rivalry) provides a …

because the grant crowds out the fund-raising of the charities who, after getting the grant, reduce efforts of fund-raising … (fund-raising crowd out)? This is the first paper to separate these two effects. Using a panel of more than 8,000 charities …, we find that crowding out is significant, at about 72 percent. We find this crowding out is due primarily to reduced fund-raising …