Estimating right and left returns to scales in data envelopment analysis: A new approach

Subject Areas : International Journal of Data Envelopment Analysis

M. Khoveyni ¹ , R. Eslami ²

1 - Department of Applied Mathematics, Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran
2 - Department of Mathematics, Islamic Azad University, South Tehran Branch, Tehran, Iran

Received: 2014-03-19 Accepted : 2014-03-19 Published : 2014-06-01

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