An additive model approach for estimating returns to scale in imprecise data envelopment analysis |
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| Authors: | M. Khodabakhshi Y. Gholami H. Kheirollahi |
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| Affiliation: | 1. Department of Mathematics, Faculty of Science, Lorestan University, Khorram Abad, Iran;2. Department of Mathematics, Islamic Azad University, Sanandaj, Iran |
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| Abstract: | In this paper, additive model is used to provide an alternative approach for estimating returns to scale in data envelopment analysis. The proposed model is developed in both stochastic and fuzzy data envelopment analysis. Deterministic (crisp) equivalents are obtained which correspond to the stochastic and fuzzy models. Numerical examples are, also, used to illustrate the proposed approaches. |
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| Keywords: | Returns to scale Chance constraints Stochastic DEA Possibility approach Fuzzy DEA |
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