Pedro MS Brinca Nova School of Business and Economics   Pcta Dr. José Sampaio, 100, H32 Vila Nova de Gaia, 4430-090 Portugal   pedro.brinca@novasbe.pt             JEL Areas: E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data) E2 : Macroeconomics: Consumption, Saving, Production, Employment, and Investment: General (includes Measurement and Data)