1. Deloitte Consulting, Brussels, Belgium
2. Heilbronn Institute for Mathematical Research, University of Bristol, Bristol, UK
3. Research Center for Operations Management, KU Leuven, Leuven, Belgium
4. Technology and Operations Management Area, Vlerick Business School, Leuven, Belgium
5. VCCM, Flanders Make, Leuven, Belgium
6. Department of Mathematics and Computer Science, University of Antwerp, Antwerp, Belgium