摘要
若决策单元非DEA有效(M),在文献的基础上给出了一种通过改变其输入或输出使它变为DEA有救(M)的方法,且用这个方法采研究地方水泥企业。
If the decision making unit is not DEA efficient (M), a method to make it DEA effi- cient (M) is presented by changing values of its outputs or inputs on the basis of reference [1], and the method is applied to make a study of local cement enterprises.