A simple backward-looking Taylor rule is estimated in a time-varying coefficient framework with quarterly German data for the period 1975-1998. Markov switching models and the Kalman Filter are used to extract the unobservable paths of the coefficients. The main finding is that the inflation...

This paper proposes a new method of estimating the Taylor rule with a time-varying implicit inflation target and a time-varying natural rate of interest. The inflation target and the natural rate are modelled as random walks and are estimated using maximum likelihood and the Kalman filter. I...