European integration is one of the most ambitious and socially far-reaching developments in world politics and in world economics. Against growing opposition and despite increasing social heterogeneity, the European Union continues to expand and to acquire new competences. But to what extent is the self-proclaimed "ever closer union among the peoples of Europe" a social reality? In which ways is the political European project anchored in social developments? How does social change impinge upon political integration?

Societal trends in multi-cultural, multi-ethnic, multi-lingual and...