摘要：: The reaction function of the Central bank expresses the preferences of the monetary authority with respect of deviations of his inflation target and the output gap. This paper evaluates the Brazilian Central Bank’s preferences and its changes during the inflation targeting period. The model of Clarida, Galí and Gertler (1999) is employed in a forward looking version. Time series econometrics is the statistical tool. Results show that the preferences of the Brazilian Central Bank are asymmetrical with respect to its goals. The monetary policymaker is more sensitive to price stability, but also takes output in account and smooth´s the interest rate over time. The monetary authority reacted stronger to controlled prices while Armínio Fraga and Henrique Meirelles were incumbent and to free prices during the Alexandre Tombini period. During financial instability periods the weight of price stability grows. There are signs that monetary policy power is increasing during the inflation targeting period, as also finds the Brazilian Central Bank.
关键词：Reaction Function, Preferences, Monetary Policy, Brazilian Central Bank, Inflation Targeting;Função de reação;Preferências;Política Monetária;Banco Central do Brasil;Metas para a Inflação
