Theories abound for why individuals give to charity. We conduct a field experiment with donors to a Yale University … theories, we conduct a laboratory experiment with undergraduates, and find no evidence to support the alternative, altruistic … motivation. We conclude that charitable gifts increase in response to the promise of public recognition primarily because of …

intergenerational altruism. Thus, immigrants may be self-selected on fertility. Soviet Jews who migrate to Israel despite high migration …. Selection on altruism can explain why historically immigrant-absorbing countries like the U.S. have higher fertility than other …. Selection on altruism also implies that immigrant-absorbing regions will grow faster, or have higher per capita income, or both …

We conducted two matching grant experiments with an international development charity. The primary experiment finds …