The Tyranny Puzzle in Welfare Economics: An empirical investigation Frank A. Cowell, Marc Fleurbaey Bertil Tungodden‡ London School of Economics CNRS, University Paris-Descartes, Sciences-Po, CORE (University of Louvain-la-Neuve) and IDEP Norwegian School of Economics and Business Administration, Chr. Michelsen Institute The Suntory Centre Suntory and Toyota International Centres for Economics and Related Disciplines London School of Economics and Political Science Houghton Street London WC2A 2AE PEP 5 Tel: (020) 7955 6674 May 2010