摘要
在文 [1]的基础上 ,刻画了 DEA有效 (C2 WH)的本质特征 ,给出了决策单元为 DEA有效 (C2 WH)的一个充要条件 ,论述了偏序集理论在分析有效生产前沿面构成、研究数据变换性质、讨论模型关系、分析决策单元变更以及指标增减对 DEA有效性影响等方面的应用 .针对 4个典型 DEA模型 。
On the basis of conclusions given in paper, this paper gives a characterization of the effective units in DEA, and a necessary and sufficient condition for DEA efficiency(C 2WH) is provided. At the same time, some problems (such as structures of production frontiers, properties of data transformation, the effects upon DEA efficiency due to the change of the numbers of DMUs or evaluated indexes and the relationships between models, etc.)are discussed by using the theory on partially ordered set in order to show off the important role of it. Some results on four typical DEA models are given.
出处
《系统工程学报》
CSCD
2002年第3期193-198,235,共7页
Journal of Systems Engineering
基金
船舶工业国防科技应用
基础研究基金资助项目 (2 0 0 0 J40 .3 0 .12 )
关键词
偏序集理论
DEA
数据包络分析
有效性
RGS^2模型
data envelopment analysis
partially ordered set
DEA efficiency
possible productive collection
