Maria JESUS Delgado-rodriguez UNIVERSIDAD REY JUAN CARLOS   Pº ARTILLEROS S/N CAMPUS DE VICÁLVARO MADRID, MADRID 28032 SPAIN   mariajesus.delgado@urjc.es   WWW.URJC.ES           JEL Areas: F4 : Macroeconomic Aspects of International Trade and Finance: General E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data)