This paper studies inflation persistence with time-varying-coefficient autoregressions for twelve Central-European countries, in comparison with the US and the euro-area. Inflation persistence tends to be higher in times of high inflation. Since the oil price shocks, inflation persistence...

Using Monte Carlo methods, we compare the ability of the Kalman-filter, the Kalman-smoother and the flexible least squares (FLS) to uncover the parameters of an autoregression. We find that the ordinary least squares (OLS) estimator performs much better that the time-varying coefficient methods...