综合DEA模型下影响因素分析

Analysis of influence factors in generalized DEA model

给出了在综合DEA模型下对于给定的数据集如何测定影响因素的方法。利用综合DEA模型(基于输入和基于输出模型)研究了去掉一个有效决策单元后对无效决策单元的影响,给出了影响大小的计算方法。提出了斜投影模型及对影响大小的计算方法。最后,给出实例分析。

For giving data sets, this paper gives a method that is how to detect the influential factor. It use the generalized DEA model （based on input model and output model） to study the influence on the inefficient DMU when delecting an efficient DMU in the efficient DMU set. It gives the calculative method about the influence factor. It puts forword the oblique projection model and gives the calculative method. At the end, it is applied to analyse an example.