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|Title:||Additive super-efficiency in integer-valued data envelopment analysis||Authors:||Cook, Wade D.
|Keywords:||DRNTU::Business||Issue Date:||2011||Series/Report no.:||European journal of operational research||Abstract:||Conventional data envelopment analysis (DEA) methods assume that input and output variables are continuous. However, in many real managerial cases, some inputs and/or outputs can only take integer values. Simply rounding the performance targets to the nearest integers can lead to misleading solutions and efficiency evaluation. Addressing this kind of integer-valued data, the current paper proposes models that deal directly with slacks to calculate efficiency and super-efficiency scores when integer values are present. Compared with standard radial models, additive (super-efficiency) models demonstrate higher discrimination power among decision making units, especially for integer-valued data. We use an empirical application in early-stage ventures to illustrate our approach.||URI:||https://hdl.handle.net/10356/102612
|DOI:||10.1016/j.ejor.2011.10.023||Rights:||© 2011 Elsevier B.V.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||NBS Journal Articles|
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