Institution: | 1. Department of Economics, Finance and Statistics, University of Perugia, Italy;2. Centro Studi Luca d’Agliano, Milan, Italy;3. Centre for Innovation, Research and Competence in the Learning Economy (CIRCLE), Lund, Sweden;4. Halle Institute for Economic Research (IWH), Halle, Germany;5. Departamento de Estructura Economica (Economia Aplicada II), Universitat de Valencia, Spain |