Stability of the classification of returns to scale in FDH models |
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Authors: | M Soleimani-damaneh A Mostafaee |
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Institution: | 1. School of Mathematics, Statistics and Computer Science, University College of Science, University of Tehran, Tehran, Iran;2. Department of Mathematics, North-Tehran Branch, Azad University, Tehran, Iran |
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Abstract: | This paper deals with the estimation of returns to scale (RTS) in free disposal hull (FDH) models and provides some stability intervals for preserving the RTS classification. It has been shown that the proposed stability intervals can be obtained via a polynomial-time algorithm based on the calculation of certain ratios of inputs and outputs, without solving any mathematical programming problem. The results of the study have been proved via some lemmas and theorems and have been illustrated by numerical examples and a real application. |
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Keywords: | DEA FDH Returns-to-scale Polynomial-time algorithms Stability |
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