1. Centre for Advanced Studies in Economics and Econometrics (CASEE), Faculty of Economics, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
2. Escola Superior de Gestão, Hotelaria e Turismo (ESGHT) and Centre for Advanced Studies in Economics and Econometrics (CASEE), University of Algarve, Faro, Portugal
3. Banco de Portugal, Lisbon, Faculty of Economics, Universidade Nova de Lisboa and Centre for Advanced Studies in Economics and Econometrics (CASEE), Faculty of Economics, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal