Affiliation: | 1. Department of Economics and CIRPÉE, HEC Montréal, 3000 Chemin de la Côte-Ste-Catherine, Montréal, Québec, Canada H3T 2A7;2. HEC University of Lausanne, Swiss Finance Institute, HEC Montréal, CIRANO, and CIRPÉE, University of Lausanne, CH-1015 Lausanne, Switzerland |