This chapter will present a goal programming model which simultaneously generates forecasts for the aggregate level and for lower echelons in a multilevel forecasting context. Data from an actual service firm will be used to illustrate and test the proposed model against a standard forecast technique based on the bottom-up/top-down approach.
Gaylord May, J. and Sulek, J.M. (2008), "A goal programming model for hierarchical forecasting", Lawrence, K.D. and Geurts, M.D. (Ed.) Advances in Business and Management Forecasting (Advances in Business and Management Forecasting, Vol. 5), Emerald Group Publishing Limited, Leeds, pp. 79-91. https://doi.org/10.1016/S1477-4070(07)00205-X
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