Mihaela Nicolau CRIEF Poitiers; University of Tours   116 rue des 4 roues Poitiers, Poitou-Charantes 86000 France   mihaela.nicolau02@gmail.com             JEL Areas: E2 : Macroeconomics: Consumption, Saving, Production, Employment, and Investment: General (includes Measurement and Data) F4 : Macroeconomic Aspects of International Trade and Finance: General