Cheng, Gang and Zervopoulos, Panagiotis (2012): A proxy approach to dealing with the infeasibility problem in super-efficiency data envelopment analysis.
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Super-efficiency data envelopment analysis (SE-DEA) models are expressions of the traditional DEA models featuring the exclusion of the unit under evaluation from the reference set. The SE-DEA models have been applied in various cases such as sensitivity and stability analysis, measurement of productivity changes，outliers’ identification，and classification and ranking of decision making units (DMUs). A major deficiency in the SE-DEA models is their infeasibility in determining super-efficiency scores for some efficient DMUs when variable, non-increasing and non-decreasing returns to scale (VRS, NIRS, NDRS) prevail. The scope of this study is the development of an oriented proxy approach for SE-DEA models in order to tackle the infeasibility problem. The proxy introduced to the SE-DEA models replaces the original infeasible DMU in the sample and guarantees a feasible optimal solution. The proxy approach yields the same scores as the traditional SE-DEA models to the feasible DMUs.
|Item Type:||MPRA Paper|
|Original Title:||A proxy approach to dealing with the infeasibility problem in super-efficiency data envelopment analysis|
|Keywords:||Data envelopment analysis (DEA); Super-efficiency (SE); Infeasibility; Orientation|
|Subjects:||C - Mathematical and Quantitative Methods > C0 - General > C02 - Mathematical Methods
C - Mathematical and Quantitative Methods > C6 - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling > C61 - Optimization Techniques; Programming Models; Dynamic Analysis
C - Mathematical and Quantitative Methods > C6 - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling > C67 - Input-Output Models
|Depositing User:||Panagiotis Zervopoulos|
|Date Deposited:||19. Oct 2012 22:59|
|Last Modified:||01. Mar 2013 16:51|
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