Christian Breunig is Professor of Comparative Politics at the Department of Politics & Public Administration at the University of Konstanz. Christine S. Lipsmeyer is Associate Professor of Political Science at Texas A&M University, USA, where she also is the Director of the Program in the Cross-National Study of Politics. Guy D. Whitten is Professor in the Department of Political Science at Texas A&M University, USA. He is also the Director of the European Union Center and the Director of the Program in Scientific Political Methodology.