Relative Accuracy of Judgmental and Extrapolative Methods in Forecasting Annual Earnings
@article{Armstrong1983RelativeAO, title={Relative Accuracy of Judgmental and Extrapolative Methods in Forecasting Annual Earnings}, author={J. Scott Armstrong}, journal={Corporate Finance: Governance}, year={1983} }
This paper identifies and analyses previously published studies on annual earnings forecasts. Comparisons of forecasts produced by management, analysts, and extrapolative techniques indicated that: (1) management forecasts were superior to professional analyst forecasts (the mean absolute percentage errors were 15.9 and 17.7, respectively, based on five studies using data from 1967-1974) and (2) judgmental forecasts (both management and analysts) were superior to extrapolation forecasts on 14…
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