We examine the problem of measuring the extent to which students with different income levels attend separate schools. Unless rich and poor attend the same schools in the same proportions, some segregation will exist. Since income is a continuous cardinal variable, however, the rich-poor...

We model the endogenous formation of nations in a world economy where nations apply redistributive policies. We show that people's preference for stronger redistributive policies may lead to greater inequality in the world's distribution of income as a result of rich individuals tending to form...