This study develops theory and uses a door-to-door fundraising field experiment to explore the economics of charity. We …

. Second, we can reject the pure altruism model of giving. Third, we find that public good provision is maximized in both the …

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 …