Essays on the economics of migration

This dissertation studies the economic consequences of international migration, with a focus on labor markets, fiscal redistribution and household behavior. Chapter 1 analyzes the labor-market and welfare effects of immigration in a general equilibrium model with search frictions, skill heterogeneity and a rich fiscal structure, calibrated to 17 OECD countries. Chapter 2 examines the fiscal impact of immigration by modeling migration choices and migrant self-selection, combining EU-SILC data with a structural framework to simulate counterfactual immigration policy scenarios. Chapter 3 studies how international migration reshapes labor allocation within migrant-sending households, using a collective household model and quasi-experimental evidence from India. By integrating structural modeling with empirical analysis, this dissertation shows that the economic effects of migration are highly context-dependent and mediated by labor-market institutions, fiscal systems and household responses. The contribution is to highlight the importance of policy design in shaping the costs and especially the benefits of international migration.