Properties of Weighted Geometric Means Combination Forecasting Method Based on Theil Coefficient
Huayou Chen · Yunchou yu guanli · 2007
Weighted geometric means combination forecasting is a kind of nonlinear combination forecasting method.Based on Theil coefficient,a weighted geometric means combination forecasting model is proposed in this paper. Some new concepts are defined for the model,which are superior combination forecasting,dominant forecasting method,combination forecasting redundant degree etc.The sufficient conditions of existence of noninferior combination forecasting and superior combination forecasting are discussed.In the meantime how to judge redundant forecasting method is also given in a theorem.