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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title Combining inflation density forecasts
Organization Unit
Authors
  • Christian Jonathan Kascha
  • Francesco Ravazzolo
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Journal of Forecasting
Publisher Wiley-Blackwell
Geographical Reach international
ISSN 0277-6693
Volume 29
Number 1-2
Page Range 231 - 250
Date 2010
Abstract Text In this paper, we empirically evaluate competing approaches for combining inflation density forecasts in terms of Kullback–Leibler divergence. In particular, we apply a similar suite of models to four different datasets and aim at identifying combination methods that perform well throughout different series and variations of the model suite. We pool individual densities using linear and logarithmic combination methods. The suite consists of linear forecasting models with moving estimation windows to account for structural change. We find that combining densities is a much better strategy than selecting a particular model ex ante. While combinations do not always perform better than the best individual model, combinations always yield accurate forecasts and, as we show analytically, provide insurance against selecting inappropriate models. Logarithmic combinations can be advantageous, in particular if symmetric densities are preferred.
Digital Object Identifier 10.1002/for.1147
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