一类基于半自由处置变量的DEA模型

DEA model based on semi-discretionary variables

首先基于具有多输入(或输出)的决策单元的实际背景,将输入(或输出)变量区分为自由处置变量、非自由处置变量和半自由处置变量,并建立新DEA模型.新DEA模型既考虑被评决策单元在进行效率评价时,根据自身实际需要对不同输入(或输出)变量进行不同比例的分项控制,又考虑非有效的决策单元在效率改善时,使DEA评价结果形成的建议是切实可行的.最后通过商业银行数据以演示新模型.

This paper firstly classifies inputs （or outputs ） non-discretionary variables and semi-discretionary variables variables into discretionary variables, based on the actual background of decision-making units with inputs and outputs, and develops a new DEA model. The new DEA model takes into consideration two factors ： The needs of the assessed decision-making units for independent control of different inputs （or outputs） variables in efficiency-assessment in accordance with the actual needs; the feasibility of the suggestions formed on basis of the DEA assessment in order to improve the efficiency of poor decision-making units. At the end of this paper, the new model is illustrated by an empirical application to commercial banks data.