1. CeBER, Faculty of Economics, University of Coimbra, Coimbra, Portugal
2. Department of Economics, Faculty of Economics and Business Administration, Babeş-Bolyai University, Cluj-Napoca, Romania
3. Department of Finance and CEFIMO, Bucharest University of Economic Studies, Bucharest, Romania
4. LEO, University of Orléans, Orléans, France