Alternative theoretical perspectives have been presented to explain internationally effective factors affecting immigration. For example, the orthodox explanation of migration is based on the concept of wage differentials as an important factor of international immigration. The world system approach declines to interpret theoretically international migration as a phenomenon between independent national economies and the world system approach studies it in relation to the development of the modern capitalist world-economy. The Job-Labor- Reward Hierarchy approach relates international labor migration to the hierarchical structure of production in the division of labor on a world scale.
It seems that the globalization phenomenon affects these approaches exactly, because it removes the geographic, economic and social boundaries domestically and internationally generates a new international labor force migration flow in which social welfare is an important factor.
In this paper, the roll of social welfare has been considered as an important factor of the international labor force between globally convergent countries.