1. Department of Economics, Business and Statistics (SEAS), University of Palermo, Palermo, Italy
2. School of Business and Economics, Loughborough University, Loughborough, UK; Economic Policies Research Unit (NIPE), University of Minho, Braga, Portugal
3. Department of Economics and Economic Policies Research Unit (NIPE), University of Minho, Braga, Portugal; London School of Economics and Political Science, LSE Alumni Association, London, UK