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Some clarifications on the DEA clustering approach |
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| Authors: | Gholam R. Amin Ali EmrouznejadS. Rezaei |
| Affiliation: | a Department of Operations Management and Business Statistics, College of Commerce, Sultan Qaboos University, Oman b Aston Business School, Aston University, Birmingham, UK c Postgraduate Engineering Centre, Azad University, South Tehran Branch, Tehran, Iran |
| Abstract: | This paper clarifies the role of alternative optimal solutions in the clustering of multidimensional observations using data envelopment analysis (DEA). The paper shows that alternative optimal solutions corresponding to several units produce different groups with different sizes and different decision making units (DMUs) at each class. This implies that a specific DMU may be grouped into different clusters when the corresponding DEA model has multiple optimal solutions. |
| Keywords: | Data envelopment analysis Clustering Alternative optimal solutions |
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