Sybe de Vries is Professor of EU Single Market Law and Fundamental Rights and the Jean Monnet Chair at the Europa Institute of Utrecht University.Ulf Bernitz is Professor of European Law at Stockholm University, director of the Stockhom Institute of European Law and director of the Oxford/Stockholm Venture in European Law.Stephen Weatherill is Professor of European Law at the University of Oxford, a Fellow of Somerville College and Deputy Director for European Law in the Oxford Law Faculty’s Institute of European and Comparative Law.