Citations: Leider, Stephen, Markus Mobius, Tanya Rosenblat, Quoc-Anh Do. 2009. Directed Altruism and Enforced Reciprocity in Social Networks. Quarterly Journal of Economics. (4)1815-1851.
Reciprocal altruism occurs where the roles of the donor and recipient are later reversed. This often occurs in social animals. For example, vampire bats feed only on blood. An individual cannot ...