We develop a formula for the optimal size of a joint savings association between individuals who share the same financial goal and who can save towards that goal at the same rate. Our motivating example and the core of our analysis is a Rotating Savings and Credit Association (ROSCA). We measure...

Received migration research has it that higher relative deprivation strengthens the incentive for people to migrate, and that migration is often a risky enterprise. Relative deprivation has been seen as a push factor in migration, and the level of risk involved in migration has been understood...

We formulate a rule for allocating asylum seekers that is based on the social preferences of the native workers of the receiving countries. To derive the rule, we construct for each country a social welfare function, SWF, where the social welfare of a population is determined both by the...