Claus Thustrup Kreiner is Professor of Economics and Director of Center for Economic Behavior and Inequality (CEBI) at the University of Copenhagen. Most of his research has centered on Public Economics, but he has also published research in many other areas. He is co-editor of the Journal of Public Economics and Area Director of Public Economics in the CESifo research network. He has practical policy experience from being member of the Danish 2008-2009 Tax Commission and co-chair of the Danish Economic Council (vismand) 2010-2014.