In this paper, we examine the role of migrant network in determining patterns of outmigration. Conditions under which migration equilibrium may permit multiple steady states are identified. Our analysis discusses instances where migration generates its own demand and explains differences in...

Why are economists convinced that {\it homo economicus}\/ is selfish? No doubt we find considerable support for this hypothesis in the behavior of our colleagues. Beyond this, a plausible evolutionary argument for selfishness would assert that if natural selection favors those who receive high...