A test of the joint efficiency of macroeconomic forecasts using multivariate random forests

Christoph Behrens, Christian Pierdzioch and Marian Risse

Journal of Forecasting, 2018, vol. 37, issue 5, 560-572

Abstract: We contribute to recent research on the joint evaluation of the properties of macroeconomic forecasts in a multivariate setting. The specific property of forecasts that we are interested in is their joint efficiency. We study the joint efficiency of forecasts by means of multivariate random forests, which we use to model the links between forecast errors and predictor variables in a forecaster's information set. We then use permutation tests to study whether the Mahalanobis distance between the predicted forecast errors for the growth and inflation forecasts of four leading German economic research institutes and actual forecast errors is significantly smaller than under the null hypothesis of forecast efficiency. We reject joint efficiency in several cases, but also document heterogeneity across research institutes with regard to the joint efficiency of their forecasts.

Date: 2018
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https://doi.org/10.1002/for.2520

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jforec:v:37:y:2018:i:5:p:560-572

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