Aggregation and Proration in Forecasting

E. Shlifer · Ronald W. Wolff

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Forecasting Techniques and Applications Consumer Market Behavior and Pricing Innovation Diffusion and Forecasting

Abstract

Conditions are determined under which (a) the sum of forecasts of sales in market segments is preferred to a forecast of the whole market and (b) a forecast of an individual market segment is preferred to a forecast obtained through proration of a forecast of the whole market. The comparisons in (a) and (b) are also applied to the problem of forecasting for several time periods into the future.

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1968Decision Rules for Inventory Management

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