Super-efficiency and DEA sensitivity analysis

Article Abstract:

Research is presented concerning the analysis of of data envelopment analysis sensitivity from a super-efficiency approach. The analysis is carried out in a general and a worst case scenario.

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Within-group common weights in DEA: an analysis of power plant efficiency

Article Abstract:

The usage of data envelopment analysis to assign common weights to groups of power plants, for the development of a model to measure the efficiency of power plants, is described.

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On alternative optimal solutions in the estimation of returns to scale in DEA

Article Abstract:

An extension of a study conducted by Zhu and Shen was undertaken which involves the creation of alternative optimal solutions for returns to scale (RTS) estimation. The alternative solutions illustrates that alternative optima can be attained even under the presence of a slightly efficient decision making unit. The importance of multiple optimal solutions in the creation of RTS estimation theory was also established.

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