Affiliation: | 1. René Ferland is at the Department of Mathematics, University du Québec à Montréal, Montréal, Québec, Canada;2. Geneviève Gauthier is at the Department of Management Sciences, HEC Montréal, Montréal, Québec, Canada;3. Simon Lalancette is at the Department of Finance, HEC Montréal, Montréal, Québec, Canada |