Integrated data envelopment analysis: Global vs. local optimum
DC Field | Value | Language |
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dc.contributor.author | Lim, Sungmook | - |
dc.contributor.author | Zhu, Joe | - |
dc.date.accessioned | 2021-09-05T22:42:18Z | - |
dc.date.available | 2021-09-05T22:42:18Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2013-08-16 | - |
dc.identifier.issn | 0377-2217 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/102438 | - |
dc.description.abstract | Chiou et al. (2010) (A joint measurement of efficiency and effectiveness for non-storable commodities: integrated data envelopment analysis approaches. European journal of Operational Research 201, 477-489) propose an integrated data envelopment analysis model in measuring decision making units (DMUs) that have a two-stage internal network structure with multiple inputs, outputs, and consumptions. They claim that any optimal solutions determined by their DEA model are a global optimum, not a local optimum. We show that such a conclusion is a false statement due to their misuse of Hessian matrix in examining the concavity of the objective function, and their DEA model is actually a non-convex optimization problem. As a result, their DEA model is unusable in practice due to a lack of efficient algorithm for this particular non-convex DEA model. We further show that Chiou et al.'s (2010) model is a special case of a well-known two-stage network DEA model, and it can be transformed into a parametric linear program for which an approximate global optimal solution can be obtained by solving a sequence of linear programs in combination with a simple search algorithm. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | EFFICIENCY DECOMPOSITION | - |
dc.subject | DEA MODELS | - |
dc.title | Integrated data envelopment analysis: Global vs. local optimum | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lim, Sungmook | - |
dc.identifier.doi | 10.1016/j.ejor.2013.02.023 | - |
dc.identifier.scopusid | 2-s2.0-84876412473 | - |
dc.identifier.wosid | 000318462600028 | - |
dc.identifier.bibliographicCitation | EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, v.229, no.1, pp.276 - 278 | - |
dc.relation.isPartOf | EUROPEAN JOURNAL OF OPERATIONAL RESEARCH | - |
dc.citation.title | EUROPEAN JOURNAL OF OPERATIONAL RESEARCH | - |
dc.citation.volume | 229 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 276 | - |
dc.citation.endPage | 278 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Business & Economics | - |
dc.relation.journalResearchArea | Operations Research & Management Science | - |
dc.relation.journalWebOfScienceCategory | Management | - |
dc.relation.journalWebOfScienceCategory | Operations Research & Management Science | - |
dc.subject.keywordPlus | EFFICIENCY DECOMPOSITION | - |
dc.subject.keywordPlus | DEA MODELS | - |
dc.subject.keywordAuthor | Integrated data envelopment analysis | - |
dc.subject.keywordAuthor | Efficiency | - |
dc.subject.keywordAuthor | Two-stage | - |
dc.subject.keywordAuthor | Local optimum | - |
dc.subject.keywordAuthor | Global optimum | - |
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