The four worlds of politics and administration in the EU: how institutional arrangements shape the struggle against antimicrobial resistance  ​tandf: Journal of European Public Policy: Table of Contents Jon Pierre Daniel Carelli B. Guy Peters a Department of Political Science, University of Gothenburg, Gothenburg, Swedenb Department of Political Science, University of Pittsburgh, Pittsburgh, PA, USAJon Pierre is Professor Emeritus in Political Science at the University of Gothenburg.Daniel Carelli is a PhD Candidate in Political Science at the University of Gothenburg.B. Guy Peters is Maurice Falk Professor of American Government at the University of Pittsburgh.