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Some clarifications on the DEA clustering approach

Gholam R. Amin, Ali Emrouznejad and Sedigheh Rezaei

European Journal of Operational Research, 2011, vol. 215, issue 2, 498-501

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 (search for similar items in EconPapers)
Date: 2011
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Handle: RePEc:eee:ejores:v:215:y:2011:i:2:p:498-501