The Effects of Different Inflation Risk Premiums on Interest Rate Spreads

This paper analyzes how the different types of inflation uncertainty affect a set of interest rate spreads for the UK. Three types of inflation uncertainty — structural uncertainty, impulse uncertainty, and steady-state inflation uncertainty — are defined and derived by using a time-varying parameter model with a GARCH specification. It is found that both the structural and steady-state inflation uncertainties increase interest rate spreads, while the empirical evidence for the impulse uncertainty is not conclusive