reciprocity. Moreover, several theoretical papers have been written showing that the observed phenomena can be explained in a …

considers the roles that altruism and reciprocity might play in cooperatives, and it discusses the recent, largely experimental … producer cooperatives that sprang up during the 1960s through the 1980s predates economists' recent work on reciprocity, but it … literature on reciprocity and other social preferences, considering its relevance to cooperatives and to incentives in teams more …

involve a concern for others (altruism) or a desire to respond to like with like (reciprocity). It also discusses empirical … feelings of supervisors towards their subordinates. Altruism appears to play a role in the last two settings while reciprocity …

mechanisms. Firstly, in the so-called pure altruism model, the parent's utility is augmented by the utility of his child. This … transfer. In a second model, altruism is impure as the parents want the child to behave in a certain way: exchange and …-altruistic setting, with imperfect credit market, transfers to children and to old parents correspond to a reciprocity contract and are …

-evolution. In particular, we focus on the conditions under which reciprocity and altruism may survive and even spread over as social …