Jaime Alonso-Carrera University of Vigo, Spain   Facultad de Ciencias Económicas y Empresariales Campus As Lagoas-Marcosende Vigo, 36310 Spain   jalonso@uvigo.es   http://webs.uvigo.es/jalonso           JEL Areas: D9 : Intertemporal Choice and Growth: General E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General