Mark Franklin is Professor Emeritus of International Politics at Trinity College Connecticut, USA, having previously taught at the universities of Strathclyde, Scotland, and Houston, Texas. As a retirement position he was the inaugural holder of the Stein Rokkan Chair of Comparative Politics at the European University Institute in Florence. Julie Hassing Nielsen is Assistant Professor in the Department of Political Science at the University of Copenhagen, Denmark, and European chief advisor for the Think Tank Kraka. She obtained her PhD from the European University Institute. Her research interests include European integration, Euroscepticism, political psychology and political behavior.