工业生产函数法用于城市工业用水量预测的研究

In order to solve the problem that the predicting accuracy of simple method is not precise in the prediction process of urban industry water consumption, based on Cobb-Douglas production function and the method of multi-layer hierarchical forecast time-varying parameters, in accordance with urban industry water consumption, urban industrial GDP and the price of industrial water, establishes the new method of industrial production function for the urban water industry forecast. Through application it could be found that the method simple, practicable, precise and the average relative error is less than 6%.