Joachim Blatter is Professor of Political Science at the University of Lucerne (Switzerland). He received his PhD from the Martin Luther University Halle-Wittenberg and wrote his Habilitation at the University of Konstanz (Germany). He held positions at the University of St. Gall, Free University of Berlin and Erasmus University Rotterdam and was visiting scholar at Harvard, European University Institute in Florence and at the Centre for Deliberative Democracy & Global Governance at the Australian National University in Canberra. He has published extensively on cross-border institution building in Europe and North America, on environmental politics as well as on transformations of governance, citizenship and democracy. His works have appeared, among others, in Citizenship Studies, Democratization, European Journal of International Relations, Governance, Global Environmental Politics, International Journal of Urban and Regional Research, Publius, and West European Politics. He has written textbooks and articles on qualitative and case-study methods – for example, Designing Case Studies: Explanatory Approaches in Small-N Research (2012, with Markus Haverland); Qualitative Politikanalyse (2007, with Frank Janning and Claudius Wagemann) and ‘In Search of Co-variance, Causal Mechanisms or Congruence? Towards a Plural Understanding of Case Studies’, Swiss Political Science Review 14, 2, 315–56 (2008, with Till Blume).