Department of Economics and Business Economics

Forecasting Macroeconomic Variables Under Model Instability

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We compare different approaches to accounting for parameter instability in the context of macroeconomic forecasting models that assume either small, frequent changes versus models whose parameters exhibit large, rare changes. An empirical out-of-sample forecasting exercise for U.S. gross domestic product (GDP) growth and inflation suggests that models that allow for parameter instability generate more accurate density forecasts than constant-parameter models although they fail to produce better point forecasts. Model combinations deliver similar gains in predictive performance although they fail to improve on the predictive accuracy of the single best model, which is a specification that allows for time-varying parameters and stochastic volatility. Supplementary materials for this article are available online.

Original languageEnglish
JournalJournal of Business and Economic Statistics
Volume35
Issue2
Pages (from-to)183-201
Number of pages19
ISSN0735-0015
DOIs
Publication statusPublished - 3 Apr 2017

    Research areas

  • Change-point models, GDP growth forecasts, Inflation forecasts, Regime switching, Stochastic volatility, Time-varying parameters

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