Evaluating Heterogeneous Forecasts for Vintages of Macroeconomic Variables

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Abstract There are various reasons why professional forecasters may disagree in their quotes for macroeconomic variables. One reason is that they target at different vintages of the data. We propose a novel method to test forecast bias in case of such unobserved heterogeneity. The method is based on so-called Symbolic Regression, where the variables of interest become interval variables. We associate the interval containing the vintages of data with the intervals of the forecasts. An illustration to 18 years of forecasts for annual USA real GDP growth, given by the Consensus Economics forecasters, shows the relevance of the method.
Original languageEnglish
Pages (from-to)829-839
Number of pages11
JournalJournal of Forecasting
Issue number4
Publication statusE-pub ahead of print - 2 Dec 2021


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