Per Ekman is a researcher and Ax:son Johnson Fellow in Political Science at the Center for Statecraft and Strategic Communication, Stockholm School of Economics, Sweden, and affiliated with the Department of Government, Uppsala University, Sweden. Björn Lundqvist is Professor of European Law at Stockholm University, Sweden. Anna Michalski is Professor in Political Science at the Department of Government, Uppsala University, Sweden, visiting Professor at the College of Europe, Bruges, and Senior Associate Research Fellow at the Swedish Institute of International Affairs. Lars Oxelheim is Professor of International Business and Finance at the University of Agder, Kristiansand, Norway, Professor Emeritus at Lund University and affiliated with the Research Institute of Industrial Economics (IFN), Sweden.