Alternative mixed integer linear programming model for finding the most efficient decision making unit in data envelopment analysis

Document Type : Research Paper


1 Department of Mathematics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.

2 Department of mathematics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.


Finding the Most Efficient Decision-Making Unit (DMU) provides more information about efficient DMUs in data envelopment analysis (DEA). Hence, in recent years, many mixed-integer linear programming (MILP) models based on a common set of weights have been proposed to determine the most efficient DMU. This paper introduces another MILP model to find the most efficient DMU. In this model, we use a numerical parameter to increase the discrimination power of the proposed model. To illustrate the various potential applications of the proposed model, we compare the performance of our model with the other three models using two real numerical examples.