1. Institute of Development Research and Development Policy, Ruhr-University Bochum, 44801 Bochum, Germany
2. Center for Studies on Europe, Azerbaijan State University of Economics, Baku AZ1001, Azerbaijan
3. Faculty of Economics, Wenzhou-Kean University, Wenzhou 325015, China
4. Center for Economic Development and Social Change (CED), 80128 Naples, Italy