This report presents the results of seven hearings on enhanced cooperation between European Union member states in the light of the changes made by the Treaty of Amsterdam. In this Treaty, the member states added a number of important new clauses on enhanced cooperation. The most momentous...

The aim of this paper is to show how and to what extent short-run differentiation through closer cooperation within the European Union can actually be made compatible with the objective of long-run unity. This question is addressed in a framework for analysis based on public goods theory and...

The Centre for European Reform is a think-tank devoted to improving the quality of the debate on the European Union. It is a forum for people with ideas from Britain and across the continent to discuss the many political, economic and social challenges facing Europe. It seeks to work with...