Affiliation: | (1) Department of Industrial Engineering and Operations Research, Columbia University and Bellcore, 01127-6699 New York, NY, USA;(2) J.L. Kellogg Graduate School of Management, Northwestern University, 60208 Evanston, IL, USA;(3) CORE, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium;(4) State University of New York at New Paltz, 12561 New Paltz, NY, USA |