"The Euro Area, the Schengen Area, the Franco-German 'motor' and Nordic cooperation illustrate how differentiation has become a pervasive and significant feature of European integration. This book offers an authoritative and comprehensive examination of differentiated integration in its...

Das Subsidiaritätsprinzip und seine Formulierung in "Quadragesimo anno" / Anton Rauscher -- Personal being and the principle of subsidiarity / William A. Frank -- Subsidiarität in ihrer Bedeutung für öffentliche Unternehmen / Bruno Kahl und Andreas Kerst -- Federalism and American politics :...