Ranking Efficient DMUs in Two-stage Network DEA with Common Weights method

Subject Areas : Statistics

M. Ahadzadeh namin ¹ , E. Khamseh ²

1 - Department of Mathematics, Shahr-e-Qods Branch, Islamic Azad University,Tehran, Iran.
2 - Department of Mathematics, Shahr-e-Qods Branch, Islamic Azad University,Tehran, Iran.

Received: 2017-05-01 Accepted : 2017-06-29 Published : 2017-10-23

Keywords: تحلیل پوششی داده‌ها (DEA), رتبه‌بندی (Ranking), کارایی, شبکه دو مرحله‌ای, وزن مشترک,

Abstract :

Two stages DEA models are used in many fields of management and industry. One of the concepts that has attracted the attention of researchers in the theory of production is the concept of ranking the units with a two-stage network. A unit ranking can provide useful information to decision makers (DMUs) about optimal decision making activities. This concept defines the superiority of a unit in terms of efficiency and effectiveness on other units. The calculation of the efficiency of the units in the two-stage DEA network was performed, and the efficiency of the two-stage unit could be a suitable criterion for ranking one unit. But the main problem is the time when some efficient units all rank as one. So far, there is no linear model for solving this problem.The purpose of this research is to provide a model for ranking of effecient units using the common weight method in a two-stage DEA network.

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