Bulletin n. 1-2/2014
November 2014
CONTENTS
  • Section A) The theory and practise of the federal states and multi-level systems of government
  • Section B) Global governance and international organizations
  • Section C) Regional integration processes
  • Section D) Federalism as a political idea
    • Frank Schimmelfennig and Thomas Winzen
    Instrumental and Constitutional Differentiation in the European Union
    in Journal of Common Market Studies , Volume 52, Issue 2, March 2014 ,  2014 ,  354-370
    Differentiation has become a salient feature of European integration. Yet systematic empirical evidence is lacking about its origins, duration and variation across countries and policies. This article provides such evidence from a new data set on differentiation in European Union treaty law. In addition, it is argued that two logics of treaty-based differentiation are at work. ‘Instrumental differentiation’ originates in enlargement and is motivated by efficiency and distributional concerns. ‘Constitutional differentiation’ has its origins in treaty revisions and is motivated by concerns about national sovereignty and identity. It is driven by Eurosceptic Member States that are opposed ideologically, or fear popular resistance, to the supranational centralization of core state powers.
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