The authors aim at obtaining a simple econometric model that allows to build a confidence interval for the dispersion of the bids made by financial institutions at the Central Bank weekly auctions of short term securities in Brazil. Under competitive conditions it is assumed that the bids'...

This paper investigates the relationship between interest rate and volatility of real effective exchange rate in Brazil. Through a simultaneous multivariate GARCH model, which allows estimating equations for the mean and variance in a single stage, it was observed that: it’s not possible to...

This paper attempts to extend empirical investigations about the asymmetric effects of monetary shocks in the Brazilian economy. We specify and estimate a nonlinear smooth transition vector autoregressive model including output, price level, exchange rate and a monetary policy indicator (Selic...