1. Timothy Besley is School Professor of Economics and Political Science, London School of Economics, London, United Kingdom, Besley is Gluskin-Granovsky Fellow and Persson is Senior Fellow at the Canadian Institute for Advanced Research (CIFAR), Toronto, Canada.
2. Torsten Persson is Torsten and Ragnar Söderberg Chair in Economic Sciences, Institute for International Economic Studies, Stockholm University, Sweden. .