Un semplice modello univariato per la previsione a breve termine dell'inflazione italiana

The aim of this paper is to build a tool for performing forecasting exercises, allowing to obtain a reliable estimate of Italian consumer price inflation. To reach this goal we estimate a simple three-equation model for the short term forecasting of twelve-month percentage variations of the Italian consumer price index. The starting point of the model is the decomposition of the general index in a main component, the so-called core inflation, capturing longer term tendencies and two additional volatile components, those of unprocessed food and energy prices. The idea is that it is exactly core inflation which is possible to explain and forecast with a set of basic economic variables acting as leading indicators.