In a haystack-type representation of a heterogeneous population that is evolving according to a payoff structure of a prisoner’s dilemma game, migration is modeled as a process of “swapping” individuals between heterogeneous groups of constant size after a random allocation fills the...

Quite often, migrants appear to exert little effort to absorb the mainstream culture and to learn the language of their host society, even though the economic returns (increased productivity and enhanced earnings) to assimilation are high. We show that when interpersonal comparisons affect...

We weave together care-giving, gender, and migration. We hypothesize that daughters who are mothers have a stronger incentive than sons who are fathers to demonstrate to their children the appropriate way of caring for one's parents. The reason underlying this hypothesis is that women on average...