1. Michael Smurfit Graduate Business School, University College Dublin, Blackrock , Co. Dublin , Ireland
2. LVMT , École des Ponts, , F-77455 Champs-sur-Marne , France
3. Univ Gustav Eiffel , École des Ponts, , F-77455 Champs-sur-Marne , France
4. KU Leuven, Faculty of Economics and Business , B-3000 Leuven , Belgium
5. Vlerick Business School, Technology and Operations Management , B-3000 Leuven , Belgium
6. Flanders Make , E2E@KU Leuven, B-3001 Heverlee , Belgium