1. Department of Economics and Management, University of Ferrara, Ferrara (FE), Italy
2. c.MET05—National University Centre for Applied Economic Studies, Ferrara (FE), Italy
3. Department of Economics and Management, University of Florence, Firenze (FI), Italy
4. ARCO—Action Research for CO-development, PIN – Polo Universitario Città di Prato, Prato (PO), Italy