Document Type : Original Article


1 Associate Professor, Shahid Beheshti University.

2 Assistant Professor, Hormozgan University.

3 Assistant Professor, Islamic Azad University, Tabriz.

4 Ph.D., Allameh Tabataba'i University.


Data Envelopment Analysis (DEA) is a linear programming technique whose main purpose is to compare and evaluate the performance of a number of similar decision makers with different inputs and outputs. The DEA models used to evaluate unit performance under investigation can use two distinct approaches: 1. Reduce inputs without altering outputs (input-driven approach) .2 Increase outputs without modifying inputs ( Output - driven approach).


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