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https://hdl.handle.net/10419/47286
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Krivonozhko, Vladimir | en |
dc.contributor.author | Førsund, Finn R. | en |
dc.contributor.author | Lychev, Andrey V. | en |
dc.date.accessioned | 2011-07-01T08:42:34Z | - |
dc.date.available | 2011-07-01T08:42:34Z | - |
dc.date.issued | 2010 | - |
dc.identifier.uri | http://hdl.handle.net/10419/47286 | - |
dc.description.abstract | A new DEA model has been introduced recently combining the primal and the dual models in order to impose strong complementary slackness conditions. It was claimed that a reference set that contains the maximum number of efficient units can then be determined. The model is very interesting as a theoretical idea. However, not only does the computational burden increase significantly, but it seems also that the basic matrices may be inherently ill-conditioned, leading to wrong results. Numerical experiments have been carried out on two real datasets of medium size with 163 and 920 units. These experiments show pervasive existence of ill-conditioned matrices leading to obviously wrong estimates of efficiency scores, and units declared as efficient reference units while actually being inefficient. | en |
dc.language.iso | eng | en |
dc.publisher | |aUniversity of Oslo, Department of Economics |cOslo | en |
dc.relation.ispartofseries | |aMemorandum |x2010,17 | en |
dc.subject.jel | C61 | en |
dc.subject.jel | D20 | en |
dc.subject.ddc | 330 | en |
dc.subject.keyword | Data envelopment analysis | en |
dc.subject.keyword | BCC model | en |
dc.subject.keyword | DEA/SCSC model | en |
dc.subject.keyword | strong complementary slackness conditions | en |
dc.title | A note on imposing strong complementary in DEA | - |
dc.type | Working Paper | en |
dc.identifier.ppn | 640475981 | en |
dc.rights | http://www.econstor.eu/dspace/Nutzungsbedingungen | en |
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