I consider the effect of caring, empathy, altruism or positive reciprocity towards others - which I collectively call … the public good converges to the efficient level. An increase in caring, empathy, altruism or positive reciprocity, an … efficiently is attributable to lack of empathy/altruism/positive reciprocity as well as to the free rider problem …

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 …