Estimating Returns to Scale in the Presence of Undesirable Factors in Data Envelopment Analysis

Subject Areas : International Journal of Data Envelopment Analysis

R.  Eslami ¹ (Department of Mathematics, Islamic Azad University, South Tehran Branch, Tehran, Iran)
A.  Davodabadi Farahani ² (Department of Mathematics, Islamic Azad University, South Tehran Branch, Tehran, Iran)

Received: 2013-07-29 Accepted : 2013-10-03 Published : 2013-10-01

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