1. Faculty of Economics and Management, Free University of Bolzano, Bolzano, Italy
2. Business Systems and Analytics Department, Distinguished Chair of Business Analytics, La Salle University, Philadelphia, PA 19141, USA;
Business Information Systems Department, Faculty of Business Administration and Economics, University of Paderborn, D-33098 Paderborn, Germany
3. Departamento de Economía Aplicada, Estructura e Historia, Instituto Complutense de Estudios Internacionales, Universidad Complutense de Madrid, Madrid, Spain
4. Department of Economics and Management, University of Trento, Trento, Italy