Thomas Rixen is Professor of Comparative Public Policy at the University of Bamberg. From 2007 to 2012 he was a research fellow at the Social Science Research Center Berlin (WZB) in the research unit "Global Governance ". His research interests are comparative and international political economy, institutionalist theory and economic, financial and tax policies. He is author of The Political Economy of International Tax Governance (Palgrave, 2008) and has published in journals such as Regulation & Governance, Journal of Common Market Studies, Journal of Theoretical Politics, Review of International Organizations, and Review of International Political Economy. Lora Anne Viola is Assistant Professor in the Politics Department of the John F. Kennedy Institute at the Freie Universität Berlin. She has been a Jean Monnet Fellow at the European University Institute, a Senior Research Fellow at the Social Sciences Research Center Berlin (WZB) and a visiting scholar at Stanford and Oxford Universities. Her research focus is on international institutional design and development. She has published on the G20, changing patterns of IO governance, sovereignty and inequality in the international system, and US foreign policy. Michael Zürn is Director of the research unit 'Global Governance' at the Berlin Social Science Center (WZB) and Professor of International Relations at the Free University of Berlin. From 2004 to 2010, he served as Founding Dean of the Hertie School of Governance. From 2002 to 2004 he was Director of the Collaborative Research Center 'Transformations of the State' at the University of Bremen. He is a member of the Berlin Brandenburg Academy of Sciences and European Academy of Sciences. His most recent publications include Bringing Sociology to International Relations (co-edited with Mathias Albert and Barry Buzan, 2013, CUP) and Rule of Law Dynamics (co-edited with André Noelkamper and Randy Peerenboom, 2013, CUP), and he has published in numerous journals such as International Organization, World Politics, Journal of Public Philosophy, European Journal of International Relations and International Studies Quarterly.
