1. Faculty of Economics and Business Administration, UNED, Madrid, Spain
2. CIS, The College for International Studies, Madrid, Spain
3. Faculté de Droit, d'Economie et de Finance, CREA, Université du Luxembourg, Esch-sur-Alzette, Luxembourg
4. ESIC Business and Marketing School, Madrid, Spain
5. Essex Business School, University of Essex, Southend-on-Sea, UK