The authors study interactions between goods trade and international factor mobility in a context suggestive of transition in Central and Eastern Europe. If complementarities between skilled labor and capital are strong--e.g., owing to externalities between skilled labor and costs of absorbing...

This paper studies the size and number of industrial clusters that arise in a multi-country world in which one sector has a propensity to cluster because of increasing returns to scale. Equilibrium will generally have smaller clusters than the world welfare optimum, and possibly too many...