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Are Macro-Forecasters Essentially The Same? An Analysis of Disagreement, Accuracy and Efficiency

Michael Clements

No icma-dp2016-08, ICMA Centre Discussion Papers in Finance from Henley Business School, Reading University

Abstract: We investigate whether there are systematic differences between forecasters in terms of their levels of disagreement and the accuracy of their forecasts, and whether these differences are related to whether or not a forecaster efficiently uses their available information. We find that forecasters are not interchangeable. At any point in time, the level of disagreement between forecasters is more likely to be due to a given set of forecasters, as opposed to any randomly-selected set of forecasters. In terms of forecast accuracy, we also find persistence, in that forecasters who are more (less) accurate in one period tend to be more (less) accurate in a subsequent period. Finally, we reject efficiency for around half of all forecasters at short horizons (depending on the variable in question), and ?find that efficient forecasters tend to be more accurate and less contrarian. Our results do not support the notion that contrarian forecasts stand apart by virtue of having superior information - knowing something that others do not.

Keywords: Expectations formation; Disagreement; Accuracy; Forecast Efficiency (search for similar items in EconPapers)
JEL-codes: C53 E37 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-for and nep-mac
Date: 2016-10
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