From its foundation, operational research (OR) has made many substantial contributions to
practical forecasting in organizations. Equally, researchers in other disciplines have …

This paper reviews the research literature on forecasting retail demand. We begin by
introducing the forecasting problems that retailers face, from the strategic to the operational, as …

In the last few decades many methods have become available for forecasting. As always,
when alternatives exist, choices need to be made so that an appropriate forecasting method …

The last decade has seen rapid advances in telecommunications technology in an
increasingly deregulated and competitive market place. Companies operating in these various …

… The small values of R 2 and β for companies A to C suggest that bias makes a relatively
small contribution to the forecast errors, though its elimination is still likely to be worthwhile. The …

… A fuller empirical analysis is described in Fildes (1989b). To illustrate the shape of the error
measure distributions, Exhibit 3a-b shows multiple BoxWhisker plots for Root Mean Squared …

… We found little evidence r = 0 17 that reported improvements in accuracy (expressed as a
rank) were associated with the recommended practice of recording the reasons for adjustments…

Macroeconomic forecasts are used extensively in industry and government. The historical
accuracy of US and UK forecasts are examined in the light of different approaches to …

When evaluating the launch of a new product or service, forecasts of the diffusion path and
the effects of the marketing mix are critically important. Currently no unified framework exists …

… a given series i have different levels of the kurtosis, then ln r i is a biased estimate of ln ( E | e
i , t f | / … However, our experiments have shown that the bias of ln r i diminishes rapidly as n i …