Methods for understanding super-efficient data envelopment analysis results with an application to hospital inpatient surgery

Liam O'Neill, Franklin Dexter

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

We compare two techniques for increasing the transparency and face validity of Data Envelopment Analysis (DEA) results for managers at a single decision-making unit: multifactor efficiency (MFE) and non-radial super-efficiency (NRSE). Both methods incorporate the slack values from the super-efficient DEA model to provide a more robust performance measure than radial super-efficiency scores. MFE and NRSE are equivalent for unique optimal solutions and a single output. MFE incorporates the slack values from multiple output variables, whereas NRSE does not. MFE can be more transparent to managers since it involves no additional optimization steps beyond the DEA, whereas NRSE requires several. We compare results for operating room managers at an Iowa hospital evaluating its growth potential for multiple surgical specialties. In addition, we address the problem of upward bias of the slack values of the super-efficient DEA model.

Original languageEnglish
Pages (from-to)291-298
Number of pages8
JournalHealth Care Management Science
Volume8
Issue number4
DOIs
StatePublished - 1 Nov 2005

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