HAJO G. BOOMGAARDEN Assistant Professor, Amsterdam School of Communication Research ASCoR, University of Amsterdam, The NetherlandsNICHOLAS BORNSTEIN Research Assistant, Economics and Environmental Management Laboratory, Swiss Federal Institute, Lausanne, SwitzerlandWILLEM BOSVELD Social Psychologist and Senior Researcher, Research and Statistics (O+S), Amsterdam, The NetherlandsSARA BINZER HOBOLT Lecturer in Comparative European Politics and Fellow, Lincoln College, University of Oxford, UKSIMON HUG Professor of Political Science, University of Zurich, UKHANSPETER KRIESI Professor of Comparative Politics, University of Zurich, SwitzerlandBRUNO LANZ Research Assistant, Economics and Environmental Management Laboratory, Swiss Federal Institute of Technology, Lausanne, SwitzerlandLAWRENCE LEDUC Professor of Political Science, University of Toronto, CanadaMICHAEL MARSH Associate Professor, Department of Political Science and Head of the School of Social Sciences and Philosophy, Trinity College Dublin, IrelandPETER NEIJENS Professor and Chair of Communication Campaigns, Amsterdam School of Communications Research ASCoR, Communication Science Department, University of Amsterdam, The NetherlandsHENRIK OSCARSSON Associate Professor, Department of Political Science, Göteborg University, SwedenPHILIP VAN PRAAG Associate Professor of Political Science, University of Amsterdam, The NetherlandsPASCAL SCIARINI Professor of Swiss and Comparative Politics,Department of Political Science, University of Geneva, SwitzerlandJEROEN SLOT Head of the Research and Policy Information group, Research and Statistics (O+S), Amsterdam, The NetherlandsALEXANDER TRECHSEL Professor of Political Science, European University Institute, Florence, Italy