Brigitte Leucht is Reader in International History and Politics at University of Portsmouth, UK. She is the editor, along with Catherine Barnard and Albertina Albors-Llorens of Cassis de Dijon: 40 Years On (2021), and with Wolfram Kaiser and Morten Rasmussen, of The History of the European Union: Origins of a Trans- and Supranational Polity 1950-72 (2009).Katja Seidel is Senior Lecturer in History at University of Westminster, UK. She has published widely on a range of European policy areas, institutions and actors. She is the author of The Process of Politics in Europe: The Rise of European Elites and Supranational Institutions (2010).Laurent Warlouzet is Professor of History and Chair of European History at Paris-Sorbonne University, France. He is the author of Governing Europe in a Globalizing World (2018), which explores the evolution of European economic and social policies in the 1970s and 1980s.