[America Manna: women and migration in a global perspective].

This article considers the role of migrant women in light of the contribution to the demographic, social, and economic development of the receiving country. The high level of development for these areas has always been fostered by the ready availability of a salaried work force and its easy replacement. The cost of labor in the country of origin is different from that in the receiving country and thus often results in a parallel work force and fosters forms of discrimination. With the crisis of the "rotation" model in the 1970s, the cost of replacing the work force has been concentrated in the countries of origin while official politics, which limited the immigration of family members, placed a greater burden on the women and the children of the emigrants, and increased the danger of their gradual marginalization.