Talk:Calculating Demand Forecast Accuracy

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This page should be deleted as measures of forecast accuracy, not limited to demand forecasting, are provided (in common notation) under Forecast - http://en.wikipedia.org/wiki/Forecast. Also, MAPE is not considered the primary demand forecasting error by statisticians and/or practitioners, MAE (MAD) is the primary measure, see Sanders, N. R. (1997). Measuring forecast accuracy: Some practical suggestions. Production and Inventory Management Journal, 38(1), 43-46 and Makridakis, S., Wheelwright, S. C., & Hyndman, R. J. (1998). Forecasting: Methods and applications (3rd ed.). New Jersey: John Wiley & Sons. Peter Catt 02:07, 15 December 2006 (UTC)

[edit] MAPE discussion

There has been considerable confusion on the issue of forecast accuracy. While academics use MAD and MAPE, there is little practical relevance the way MAPE is used by academics in the industry. The discussion on this page is perhaps one of a few on the web that brings to light the criticisms leveled against the use of MAPE as aruged by the academics.

While the industry practitioners have seen the rise of the discipline of demand planning, there is little recognition of this discipline among academic forecasters. The wiki should have a fair discussion of both the academic as well as the real world concepts. Markchockal 17:21, 14 March 2007 (UTC)