Evaluating the Efficiency of Decision Making Units in the Presence of Flexible and Negative Data
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Title | Evaluating the Efficiency of Decision Making Units in the Presence of Flexible and Negative Data |
Authors | |
Abstract | Looking into the literature reveals that conventional data envelopment analysis (DEA) models assume non-negative inputs and outputs in which the status of each measure is known as either input or output. However, occasions arise where a measure can play either input or output roles and can take negative values. Emrouznejad et al., (2010a) [Emrouznejad A, Anouze A.L and Thanassoulis E (2010a)A semi-oriented radial measure for measuring the efficiency of decision making units with negative data, using DEA. European Journal of Operational Research, 200, 297-304. ] introduced a Semi-Oriented Radial Measure (SORM) for modeling DEA with negative data. The current paper presents a modification of the SORM model to accommodate such flexible measures, and indeed a model is proposed to evaluate the efficiency of decision making units (DMUs) where flexible and negative data exist. Several examples illustrate the proposed approach. |
Publisher | Indian Society for Education and Environment (ISEE) |
Date | 2012-12-01 |
Source | Indian Journal of Science and Technology Volume 5, Issue 12, December 2012 |