We study how inflation in Brazil reacts to changes in the interest rates and in the exchange rate. Using a disaggregation of IPCA within 512 items, it is possible to show that, after an interest rate increase or exchange rate depreciation, price dispersion alters. Our results indicate, furthermore, that it takes from six to twelve months until price structure returns to the one that existed before the change. This result seems interesting because it shows that all price distribution is affected by a macroeconomic shock.
