The author of this brief examined forecast accuracy conditional on forecaster disagreement of nine variables within the SPF compared to a benchmark model using the Giacomini and White forecast accuracy test. The most general finding is that where there is a conditional difference in forecast accuracy between the SPF and the benchmark model, the SPF becomes more accurate than the benchmark model as forecaster disagreement rises in many of the examined cases. Additional evidence emphasizes the importance of using all four historical realizations of the data to test the forecasts against rather than relying on just a single realization for forecast accuracy tests.
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Forecast Accuracy and Forecaster Disagreement in the Survey of Professional Forecasters
09 Jan ’24
Research Brief — This research brief continues the Philadelphia Fed’s longstanding tradition of examining the forecast accuracy of the SPF by testing the survey’s accuracy against a benchmark model, conditioning on forecaster disagreement.
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