1. Department of Economics, GREDEG, Université Côte d’Azur, Nice, France
2. Department of Economics, IESEG Management School, Lille, France
3. Faculty of Economic Sciences and Management of Nabeul, University of Carthage, Tunis, Tunisia
4. LEGI, Tunisia Polytechnic School, Carthage, Tunisia
5. Department of Management, Narotama University, Surabaya, Indonesia