We model group formation as a response to relative deprivation. We employ a simple measure of relative deprivation. We show that the process of deprivation-induced self-selection into groups reaches a unique steady state. We study the social welfare implications of the deprivation-induced...

We offer a game-theoretic proof of Hamilton's rule for the spread of altruism. For a simple case of siblings, we show that the rule can be derived as the outcome of a one-shot prisoner's dilemma game between siblings.

Quite often established migrants offer assistance and support that facilitate the arrival of new migrants. Why would migrants want other migrants to join them - so much so as to be willing to pay for them to come? We suggest a rationale. Our modeling framework is capable of explaining several...

We model migration as a response to relative deprivation. We present a specific configuration of incomes in which the process of migration in response to relative deprivation reaches a steady state. However, for the general configuration of incomes we show that it is impossible to prove the...

Migration in India, particularly in rural areas, is dominated by the movements of women for the purpose of marriage. We seek to explain these mobility patterns by examining marital arrangements among Indian households. In particular, we hypothesize that the marrying out of daughters to...