ABSTRACT
International comparative research focuses on the study of a relation and it can be based, either on the similarities or differences existing between two or more social processes. The issue of linearity in comparative work has been one of the main problems when dealing with the evolutionary heritage of the social sciences. Firstly, the idea of linearity is based on the existence of a fundamental industrializing trend, which itself is built into the main sociological theories. Then, the idea of linearity can also be applied to the assumed role of the welfare state in the later capitalist era. This chapter poses the question of convergence in terms of the interdisciplinary context located in the labor market, civil society, and the state. Changes in the market and in the family are the basis for the reproductive effect on the situation of foreign immigrants.
