Central European University, Budapest. David Howarth is Senior Lecturer in Politics at the University of Edinburgh. Nicolas Jabko is a research director at the Centre d'Etudes et de Recherches Internationales (CERI) of SciencesPo in Paris. Juliet Johnson is Associate Professor of Political Science at McGill University. Huw Macartney is an ESRC Postdoctoral Fellow at Nottingham University. Ivo Maes is a Deputy Head of the Research Department of the National Bank of Belgium and holds the Robert Triffin Chair at the Institut d'tudes europennes of the Universit Catholique de Louvain. Martin Marcussen is Associate Professor of Politics at the University of Copenhagen. Michael Moran is WJM Mackenzie Professor of Government at Manchester University and a Fellow of the British Academy. George Pagoulatos is Associate Professor of Politics at the Department of International and European Economic Studies, Athens University of Economics and Business, and Visiting Professor at the College of Europe in Bruges. Lucia Quaglia is Senior Lecturer in Politics and Contemporary European Studies at Sussex University. Gaby Umbach is research associate at the Jean-Monnet Chair for Political Science, University of Cologne. Amy Verdun is Professor of Political Science, Jean Monnet Chair and Director of the Jean Monnet Centre of Excellence at the University of Victoria, Canada. Wolfgang Wessels holds the Jean Monnet Chair for Political Science at the University of Cologne. John T. Woolley is Professor of Political Science and Chair of the Political Science Department at the University of California, Santa Barbara. "There are some real gems here. The chapter