Reginaldo Pinto Nogueira, jr. IBMEC-MG   Rua Rio Grande do Norte, 300 2o andar Belo Horizonte, Minas Gerais 30130130 Brazil   rpnjunior@yahoo.com.br             JEL Areas: E5 : Monetary Policy, Central Banking, and the Supply of Money and Credit: General E3 : Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data)