A long series of laboratory and field experiments, as well as conventional empirical studies, has established that (1) individuals voluntarily provide themselves with public goods at levels exceeding those predicted by the Nash voluntary contributions mechanism, and (2) agents reciprocate...

This paper studies the evolution of self-enforcing reciprocity norms in a developing economy with weak property rights. In the model, children are viewed as investments in old-age support. In order to increase support in their old age, parents attempt to instill preferences for reciprocity in...