The Phillips Curve: Forward-Looking Behavior and the Inflation Premium

We use the inflation premium—the difference between nominal and real interest rates—as a proxy for expected inflation in the context of the New Keynesian Phillips Curve. Using data from inflation-indexed and nominal bonds we estimate a forward-looking Phillips curve for the United Kingdom over the period 1985-2004. The proposed model describes UK inflation dynamics considerably better than does the standard hybrid New Keynesian Phillips Curve under the assumption of rational expectations. In contrast with the findings in the rest of the literature we find that there still exists a tradeoff between inflation and the stance of the real economy, regardless of the empirical measure used. This relationship also persists in the period since the UK adopted inflation targeting as a framework for monetary policy. JEL Classification: E31, E43