Adaptive learning from model space

Jan Prüser

Journal of Forecasting, 2019, vol. 38, issue 1, 29-38

Abstract: Dynamic model averaging (DMA) is used extensively for the purpose of economic forecasting. This study extends the framework of DMA by introducing adaptive learning from model space. In the conventional DMA framework all models are estimated independently and hence the information of the other models is left unexploited. In order to exploit the information in the estimation of the individual time‐varying parameter models, this paper proposes not only to average over the forecasts but, in addition, also to dynamically average over the time‐varying parameters. This is done by approximating the mixture of individual posteriors with a single posterior, which is then used in the upcoming period as the prior for each of the individual models. The relevance of this extension is illustrated in three empirical examples involving forecasting US inflation, US consumption expenditures, and forecasting of five major US exchange rate returns. In all applications adaptive learning from model space delivers improvements in out‐of‐sample forecasting performance.

Date: 2019
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https://doi.org/10.1002/for.2549

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jforec:v:38:y:2019:i:1:p:29-38

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