Real and nominal UK interest rates, ERM membership, and inflation targeting

This article estimates a two-factor term structure model to analyze the time-varying mean-reverting levels of the UK real and nominal short-term interest rates. Before and during British membership in the ERM, the mean-reverting levels of real and nominal short rates have a strong negative correlation. Afterward, when the UK implemented an inflation targeting policy, the mean-reverting levels have a strong positive correlation. The article also reports empirical evidence of a link between the time-varying central tendencies and inflation in the disinflation period before the implementation of the inflation targeting policy.