This monograph intervenes in the long-standing and controversial debate on the socio-economic orientation of the European Union. Arguing that the European economic constitution is pluralist in the sense that it does not favor any specific socio-economic model, it shows that internal market law allows the pursuit of very different regulatory projects by the European and the national legislators. The book takes an interdisciplinary approach. The three main chapters analyze the history of the internal market, its regulatory purpose in the light of current socio-economic conflicts and its textual...