on gravity modeling and estimation for international trade and migration and on domestic firm-level labor market effects … of internationalization. Chapter 2 structurally estimates a micro-founded gravity equation for migration flows. For a … migration frictions. Chapter 3 asks how the welfare quantification of trade liberalization changes if one allows workers to be …

We consider the case in which the opening up of an economy to migration results in departure of skilled workers. We … point out that while the possibility of migration changes the set of employment opportunities, it also affects the structure … several interesting results. First, while migration is pursued by the relatively high-skilled, subsequent return migrants are …

We explore the links between migration of labour and location specific (urban) pollution, suggesting a sense in which … pollution can be welfare improving. In a conventional Harris-Todaro model of urban-rural migration, individuals migrate so as to … gain can be realized through the use of a Pigouvian tax (or instrument) that discourages migration. Thus if pollution is …

capital. Yet a strictly positive probability of migration to a richer country, by raising both the level of human capital … migration policy the welfare of all workers is higher than in the absence of this policy. …

A theory is developed of labor migration that is prompted by a desire to avoid social humiliation. In a general … equilibrium framework it is shown that as long as migration can reduce humiliation sufficiently, migration will occur even between … two identical economies. Migration increases the number of individuals who choose to perform degrading jobs and …

workers move from the periphery to the core, but it is rather reinforced by migration. These theoretical predictions of our …