Improving the discrimination power and weights dispersion in the data envelopment analysis

Authors:
Hasan Bal;H. Hasan Örkcü;Salih Çelebioğlu
Affiliations:
Gazi University, Arts and Science Faculty, Department of Statistics, 06500, Ankara, Turkey;Gazi University, Arts and Science Faculty, Department of Statistics, 06500, Ankara, Turkey;Gazi University, Arts and Science Faculty, Department of Statistics, 06500, Ankara, Turkey
Venue:
Computers and Operations Research
Year:
2010

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Abstract

Data envelopment analysis (DEA) has been a very popular method for measuring and benchmarking relative efficiency of peer decision making units (DMUs) with multiple input and outputs. Beside of its popularity, DEA has some drawbacks such as unrealistic input-output weights and lack of discrimination among efficient DMUs. In this study, two new models based on a multi-criteria data envelopment analysis (MCDEA) are developed to moderate the homogeneity of weights distribution by using goal programming (GP). These goal programming data envelopment analysis models, GPDEA-CCR and GPDEA-BCC, also improve the discrimination power of DEA.