Efficiency Evaluation of Wheat Farming: A Network Data Envelopment Analysis Approach

摘要: Traditional data envelopment analysis (DEA) models deal with measurement of relative efficiency decision making units (DMUs) in which multiple-inputs consumed to produce multiple-outputs. One the drawbacks these is neglecting internal processes each system, may have intermediate products and/or independent inputs outputs. In this paper some methods are usable for network systems briefly reviewed. A new unified model also introduced can be easily applied performance all type production process. As an application DEA models, evaluation wheat Iran provinces considered and results compared.Traditional compared.