Organization for Economic Co-Operation and Development (OECD), Bank of Italy, LEDa, Compass Lexecon, Bank of Italy, University of Oxford - Centre of the Study of African Economies, Universidad de Oviedo - Facultad de Economicas, Universidad Autónoma de Madrid, Nova School of Business and Economics, LEDa, University of Erlangen-Nuremberg-Friedrich Alexander Universität Erlangen Nürnberg and Government of the Federal Republic of Germany - Institute for Employment Research (IAB)