A note on imposing strong complementary slackness conditions in DEA
AbstractA 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 erroneous results. Numerical experiments have been carried out on two real datasets of medium size with 163 and 920 units. These experiments, using well known reliable software, 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.
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Bibliographic InfoArticle provided by Elsevier in its journal European Journal of Operational Research.
Volume (Year): 220 (2012)
Issue (Month): 3 ()
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Web page: http://www.elsevier.com/locate/eor
Data envelopment analysis; BCC model; Strong complementary slackness conditions; DEA/SCSC model;
Other versions of this item:
- Krivonozhko, Vladimir & R. Førsund, Finn & V. Lychev, Andrey, 2011. "A Note on Imposing Strong Complementary Slackness Conditions in DEA," Memorandum 17/2010, Oslo University, Department of Economics.
- C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
- D20 - Microeconomics - - Production and Organizations - - - General
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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