Free riding is not the problem: how agency, heterogeneity and authority challenge collective action against antimicrobial resistance in the European Union  ​tandf: Journal of European Public Policy: Table of Contents Jon Pierre Daniel Carelli Björn Rönnerstrand a Department of Political Science, University of Gothenburg, Gothenburg, Swedenb The SOM Institute, University of Gothenburg, Gothenburg, SwedenJon Pierre is a Professor Emeritus of Political Science at the University of Gothenburg.Daniel Carelli is a PhD candidate in the Department of Political Science, University of Gothenburg.Björn Rönnerstrand, PhD, is a researcher at the SOM Institute, University of Gothenburg.