An alternative measure of inflation

Abstract

The author proposes an alternative measure of inflation that captures the intuition behind the use of "core" measures. Inflation is modeled as an unobserved factor affecting the components of an aggregate price index (including food and energy). The common component, estimated using Kalman filtering, resembles usual measures of core inflation; its extrapolation can be used to improve performance in forecasting core inflation.Inflation (Finance) ; Monetary policy