基于SBM-NS模型的环境效率评价  

Environmental Efficiency Assessment Based on SBM-NS Model

作　　者：刘勇[1] 李志祥[1] 李静[2] 

机构地区：[1]北京理工大学管理与经济学院,北京100081 [2]合肥工业大学人文经济学院,安徽合肥230009

出　　处：《数学的实践与认识》2009年第24期25-30,共6页Mathematics in Practice and Theory

基　　金：教育部人文社科青年基金(08JC790028)

摘　　要：给出一种处理非期望产出的环境效率评价模型,一方面解决了投入松弛性的问题,另一方面也解决了非期望产出存在下的效率评价问题,且模型能够避免量纲不同和角度选择的差异带来的偏差和影响.最后通过实证说明模型的有效性.This paper presents a model to evaluate the Eco-efficiency （SBM-NS） On the one hand, the problem of slacks of the inputs and outputs are resolved; On the other hand, the problem of efficiency evaluation is also resolved. In addition, the model has a non-dimensional and non-angle characteristics, witch can avoid the bias and influence brought about by the different selection of dimension and perspective. Finally, we use a empirical study to description the validity.

关 键 词：环境效率 非期望产出 SBM-NS模型 

分 类 号：X820.3[环境科学与工程—环境工程]