Institution: | (1) Istituto di Scienze Economiche, University of Urbino, Italy, via Saffi n.42, I-61029 Urbino, Italy;(2) Department of Managerial Economics and Industrial Organization, Institute of Management Science, University of Technology, Vienna, Austria;(3) Systems and Industrial Engineering Department, University of Arizona, Tucson, AZ 85721-0020, USA |