Programmatic efficiency comparisons between unequally sized groups of DMUs in DEA

Abstract

Data envelopment analysis (DEA) is a popular non-parametric technique for determining the efficiency of a homogeneous set of decision-making units (DMUs). In many practical cases, there is some doubt if the all the DMUs form a single group with a common efficiency distribution. The Mann–Whitney rank statistic has been used in DEA both to test if two groups… (More)
DOI: 10.1057/palgrave.jors.2601961

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