Providing a Multistage Network Model of Data Envelopment Analysis to Determine the Efficiency of Sustainable Supply Chains

Therefore, in the present article, a four-stage supply chain consisting of suppliers, transformers, distributors and retailers has been examined that in each stage, the inputs and outputs naturally and by their inner essence are brought into the chain through three natural, social and economic factors, and on the other hand, the non-discretionary inputs and outputs were also discussed for the first time in this article. In each stage, the output from the preceding step will be considered as the input of the new stage and called the intermediate measures in the network, the amount of new inputs are added to them, and performance of each step’s components is first studied separately, so that, apart from the presentation and performance rating of each DMU as a sustainable supply chain, all of its efficient components should be considered as a network component, and eventually, by using the non-radial Russell Model, the efficient DMU would be considered as a template reference to enhance other decision-making units both at each stage and at the end of the work. Finally, two examples have been used to case study and the efficiency of the model to determine the stability of each unit.

کلیدواژه ها:

Sustainable Supply Chain Management ، Data Envelopment Analysis ، Multi-objective ، Sustainability.