International audienceIn this paper we will discuss about the paradigm of methodological cosmopolitism proposed by Ulrich Beck from the theory of migrations, based on research on new migrants, cosmopolitics and inegal individuation. We will first discuss the relations between cosmopolitanism, reflexive modernity and individuation, and then introduce the paradigm of Post-Western Sociology in dialogue with methodological cosmopolitanism. In Europe because of economic crisis, ethnic conflicts and wars in different countries, increasing numbers of asylum seekers, refugees, new migrants converge in big cities where they experiencing integration, exclusion, or even expulsion. Biopolitics, economic insecurity on labour markets and ethnic discrimin...