A Generalized Model in the Performance Evaluation of Decision Making Sub-Units

Data envelopment analysis (dea) evaluates the efficiency of decision making units with multiple inputs and outputs. so far, a number of dea models have been developed: the ccr model, the bcc model and the fdh model are well known as basic dea models. in many instance, however, the decision making units can be separated into different subunits.in this paper, we study a generalized model for this dmus by different sub-units.