Sebastian Oberthür is Academic Director of the Institute for European Studies at the Vrije Universiteit Brussel. Recent publications include Managing Institutional Complexity: Regime Interplay and Global Environmental Change (MIT Press, 2011).

Knud Erik Jørgensen is Professor in the Department of Political Science at Aarhus University. Previous publications include The European Union and International Organisations (Routledge, 2008).

Jamal Shahin is Assistant Professor in the Department of European Studies at the University of Amsterdam, and Senior Fellow at the Institute for European Studies at the Vrije Universiteit Brussel. Previous publications include The Idea of a United Europe: Political, Economic and Cultural Integration Since the Fall of the Berlin Wall (Macmillan, 2000).