✦ LIBER ✦

Judgemental revision of sales forecasts: The relative performance of judgementally revised versus non-revised forecasts

✍ Scribed by Brian P. Mathews; Adamantios Diamantopoulos

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 441 KB
Volume: 11
Category: Article
ISSN: 0277-6693
DOI: 10.1002/for.3980110606

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✦ Synopsis

The judgemental revision of sales forecasts is an issue which is receiving increasing attention in the forecasting literature. This paper compares the performance of forecasts after revision by managers with that of the forecasts which were accepted by them wifhout revision. The data set consists of sales forecasting data from an industrial company, spanning six quarterly periods and relating t o some 900 individual products. The findings show that, in general, the improvements made by managers bring the forecast errors of revised forecasts more into line with non-revised forecasts, but the change is often marginal, and the best result is equivalence between revised and non-revised forecasts.

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