Dario Corso University of Palermo, Sicily, Italy   Dipartimento ”Gaetano Mosca” Via Maqueda 172 Palermo, Sicily 90100 Italy   dario.corso@unipa.it             JEL Areas: E2 : Macroeconomics: Consumption, Saving, Production, Employment, and Investment: General (includes Measurement and Data) J2 : Demand and Suppply of Labor: General