We study with a sample of 1,070 primary school children, aged seven to eleven years, how altruism in a donation … theories of reciprocal altruism that provide a cornerstone to understand human social behavior. We find that higher risk … tolerance and patience in intertemporal choice increase, in general, the level of donations, albeit the effects are non …

investigate the role of altruism in SP. We make use of an Internet survey company's data on respondents' donations of earned …, and respondent characteristics. The strong association between past donations and higher WTP imply that altruism is an … surveys. However, studies analysing the effect of altruism on willingness to pay (WTP) have underappreciated the challenges in …

intensive margins of donations, are of short duration and are limited to less than one year. This supports the prevalent …