1. IESEG School of Management, Univ. Lille, CNRS, UMR 9221-LEM-Lille Economie Management, F-59000 Lille, France
2. Univ. Lille, CNRS, IESEG School of Management, UMR 9221-LEM-Lille Economie Management, F-59000 Lille, France
3. European Institute on Economics and the Environment (EIEE), Centro Euro-Mediterraneo sui Cambiamenti, 20144 Milan, Italy
4. Department of Management, Economics and Industrial Engineering, Politecnico di Milano, 20133 Milan, Italy