USING A GREY CENTRALIZED NETWORK DATA ENVELOPMENT ANALYSIS METHOD FOR PERFORMANCE EVALUATION
The operation of any dynamic organization needs to be evaluated to help the organization to improve. One of the most practical methods of evaluating is Network Data Envelopment Analysis (NDEA). NDEA compares the decision making units via a linear or non-linear model. NDEA considers all inputs and outputs during the network process, while standard DEA just considers the inputs of first stage and output of last stage. Intermediate data are not considered by standard DEA. NDEA models can be solved via different approaches; one of them is Game Theory approach. The efficiency of NDEA model has been calculated by centralized game. Also NDEA model has been developed by considering Grey numbers to manage the uncertainty of the real world. Grey Centralized NDEA model has evaluated the performance of decision making units (DMUs). The proposed model has been used in Iran Khodro Company which is one of the most important companies at automobile industry in Iran.
Network Data Envelopment Analysis, Grey System Theory, Game Theory, Centralized game and Performance Evaluation