Tilman Börgers is Samuel Zell Professor of the Economics of Risk at the University of Michigan. Before coming to Michigan in 2005, he was Professor of Economics at University College London. He holds a PhD in economics from the London School of Economics.; Daniel Krähmer is Full Professor of Economics in the Department of Economics at Universität Bonn, Germany.; Roland Strausz is Full Professor and Chair of the Institute for Economic Theory at Humboldt-Universität Berlin, Germany.