First Author:   Amit Sen Xavier University sen@xavier.edu   Department of Economics, 3800 Victory Parkway, Xavier University Cincinnati, 45207-3212, U.S.A.   (513) 745-2931(Phone) (513) 745-2931(Fax) Second Author: Herve Queneau Brooklyn College of the City University of New York, and University of Paris I Pantheon-Sorbonne/CNRS (Laboratoire Georges Friedmann) Hqueneau@brooklyn.cuny.edu   Department of Economics, 2900 Bedford Avenue, Brooklyn College of the City University of New York Brooklyn, 11210-2889, U.S.A.   (718) 951-5000 (ext. 2097)(Phone) (718) 951-4867(Fax)