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A note on “A directional slacks-based measure of technical inefficiency” |
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| Authors: | Jesús T Pastor [Author Vitae] Juan Aparicio [Author Vitae] |
| Institution: | Center of Operations Research (CIO), University Miguel Hernandez de Elche, 03202 Elche, Alicante, Spain |
| Abstract: | In this note we show, by means of several examples, that a directional distance function model cannot be matched with an additive model. Specifically, we show the difference between the directional slacks-based measure and the corresponding directional distance function. |
| Keywords: | DEA (data envelopment analysis) Directional distance functions Weighted additive models |
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