1. Department of Geographical Sciences, University of Maryland, College Park, USA
2. Department of Supply Chain Management, Michigan State University, East Lansing, USA
3. Department of Information Sciences, Statistics, and Management Science, University of Alabama, Tuscaloosa, USA
4. Operations and Information Management Division, Babson College, Wellesley, USA
5. Supply Chain Management, Department of Management, Colorado State University, Fort Collins, USA
6. Verterbi School of Engineering, University of Southern California, Los Angeles, USA