Abstract:

Data envelopment analysis (DEA) is an important method to evaluate the efficiency of the same kind of decision making units (DMUs). However, the DMUs may have multiple attributes in many cases, then it is hard to apply the traditional DEA method on such issue. In order to study the problem on the efficiency evaluation of multiattribute DMUs, a production possibility set is first structured, which has the same attribute as a multiattribute DMU by using some sample DMUs. Then a model(Twi) for evaluating the double attribute DMUs and the corresponding conception of TwiDEA efficiency are given．In addition, the projection properties of a multiattribute DMU and the relationship between (Twi) model and the traditional DEA models are analyzed. Finally, a general model (Mult) for the efficiency evaluation of multiattribute DMUs and its related properties are discussed.