A recent literature has analysed the Central Bank's credibility nature and determinants. In general, a Central Bank with higher credibility can implement a more efficient monetary policy, which is expressed through lower social costs in terms of volatility of relevant variables, such as output...

By implementing the Copulas method, this work analyses the dependence relationship or structure between the Brazilian consumer observed inflation and the expected inflation, from January 2005 to June 2011. Its results are consistent with some works for the Brazilian case, as the dependence...