Social and economic aspects of immigration.

Flows of people are observed as international migration. Every developed country in the world today has become de facto a "country of immigration" whether the country cares to admit it or not. We have surveyed 99 communities in Mexico and 35 in the rest of Latin America and the Caribbean. The datasets contain basic data on 19,850 U.S. migrants originating in Mexico and 3,322 migrants originating elsewhere in Latin America or the Caribbean. As a result of the contradictions of U.S. policy during the 1990s, what used to be a circular flow of able-bodied male workers has been transformed into a permanent migrant migration of families, which will have profound effects on American society for years to come.