Efficiency Decomposition in Multi-Stage Network with Inputs and Desirable and Undesirable Outputs in Data Envelopment Analysis
In the previous research, two models were suggested to evaluate the efficiency of decision-making units comprising two and three-stage network structures with desirable and undesirable intermediate measures and outputs els were defined and also the proposed modwith fuzzy data. In this paper, the mentioned models are improved with a multi-stage network structure. These models are then generalized to evaluate the efficiency of network decision-making units. Finally, a practical example will be presented to show the capability of the proposed model over the previous one.
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