1. Interuniversity Research Centre on Enterprise Networks, Logistics and Transportation (CIRRELT) Montréal Québec H3T 1J4 Canada
2. Department of Management and Technology Université du Québec à Montréal Montréal Québec H2X 3X2 Canada
3. SNF – Centre for Applied Research at NHH Helleveien 30 Bergen 5045 Norway
4. Department of Business and Management Science NHH Norwegian School of Economics Helleveien 30 Bergen 5045 Norway
5. Indian Institute of Management Ahmedabad, Gujarat 380015 India