Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/19653
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dc.contributor.authorToloo, M.-
dc.contributor.authorBABAEE, Seddigheh-
dc.date.accessioned2015-10-01T12:48:39Z-
dc.date.available2015-10-01T12:48:39Z-
dc.date.issued2015-
dc.identifier.citationAPPLIED MATHEMATICS AND COMPUTATION, 270, p. 527-533-
dc.identifier.issn0096-3003-
dc.identifier.urihttp://hdl.handle.net/1942/19653-
dc.description.abstractData envelopment analysis (DEA) is a non-parametric data oriented method for evaluating relative efficiency of the number of decision making units (DMUs) based on pre-selected inputs and outputs. In some real DEA applications, the large number of inputs and outputs, in comparison with the number of DMUs, is a pitfall that could have major influence on the efficiency scores. Recently, an approach was introduced which aggregates collected inputs and outputs in order to reduce the number of inputs and outputs iteratively. The purpose of this paper is to show that there are three drawbacks in this approach: instability due to existence of an infinitesimal epsilon, iteratively which can be improved to just one iteration, and providing non-radial inputs and outputs and then capturing them. In order to illustrate the applicability of the improved approach, a real data set involving 14 large branches of National Iranian Gas Company (NIGC) is utilized.-
dc.description.sponsorshipThe research was supported by the Czech Science Foundation (GACR project 14-31593S) and through European Social Fund within the project CZ.1.07/2.3.00/20.0296.-
dc.language.isoen-
dc.rights© 2015 Elsevier Inc. All rights reserved.-
dc.subject.otherdata envelopment analysis; stable interval; variable reduction; radial and non-radial models; gas company-
dc.titleOn variable reductions in data envelopment analysis with an illustrative application to a gas company-
dc.typeJournal Contribution-
dc.identifier.epage533-
dc.identifier.spage527-
dc.identifier.volume270-
local.bibliographicCitation.jcatA1-
dc.description.notesToloo, M (reprint author), VSB TU Ostrava, Fac Econ, Sokolska Tr 33, Ostrava 70121 1, Ostrava, Czech Republic. mehdi.toloo@vsb.cz-
local.type.refereedRefereed-
local.type.specifiedArticle-
dc.identifier.doi10.1016/j.amc.2015.06.122-
dc.identifier.isi000364247000045-
item.contributorToloo, M.-
item.contributorBABAEE, Seddigheh-
item.fullcitationToloo, M. & BABAEE, Seddigheh (2015) On variable reductions in data envelopment analysis with an illustrative application to a gas company. In: APPLIED MATHEMATICS AND COMPUTATION, 270, p. 527-533.-
item.accessRightsRestricted Access-
item.fulltextWith Fulltext-
item.validationecoom 2016-
crisitem.journal.issn0096-3003-
crisitem.journal.eissn1873-5649-
Appears in Collections:Research publications
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