New Models for Data Envelopment Analysis. Measuring Efficiency Outwith the VRS Frontier

Iain Paterson
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Iain Paterson: Institute for Advanced Studies, Vienna

No 84, Economics Series from Institute for Advanced Studies

Abstract: Some models are presented in this paper which extend the concept of measuring superefficiency to the useful case of variable returns-to-scales (VRS), thus enabling the ranking of efficient as well as inefficient units. Two models, namely the Universal Radial Model and the Universal Additive Model, are presented that also have strong invariance properties (units and translation invariance). For both of these models a method for normalising the efficiency scores on a (0-1+) scale is presented. These models have been implemented in a software package and applied to the ranking of units in an industrial context.

Keywords: Data envelopment analysis (DEA); Superefficiency; Universal models (search for similar items in EconPapers)
JEL-codes: C14 C61 C88 (search for similar items in EconPapers)
Pages: 12 pages
Date: 2000-09
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https://irihs.ihs.ac.at/id/eprint/1284 First version, 2000 (application/pdf)

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