Variable selection in data envelopment analysis via Akaike’s information criteria
Yongjun Li (),
Xiao Shi (),
Min Yang () and
Liang Liang ()
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Yongjun Li: University of Science and Technology of China
Xiao Shi: Shandong University of Finance and Economics
Min Yang: Hefei University of Technology
Liang Liang: Hefei University of Technology
Annals of Operations Research, 2017, vol. 253, issue 1, No 20, 453-476
Abstract The decision makers always suffer from predicament in choosing appropriate variable set to evaluate/improve production efficiencies in many applications of data envelopment analysis (DEA). The selected data set may exist information redundancy. On that account, this study proposes an alternative approach to screen out proper input and output variables set for evaluation via Akaike’s information criteria (AIC) rule. This method mainly focuses on assessing the importance of subset of original variables rather than testing the marginal role of variables one by one in many other methods. In terms of the proposed approach, the most optimized variable set contains the least redundant information, which provides decision support to the decision makers. Besides, we also define redundant/cross redundant variables with the form of theorems and give the proofs subsequently. In addition, the AIC approach is firstly extended to stochastic data set to select an appropriate set of stochastic variables as well. Finally, the proposed approach has been applied to some data sets from given data and prior DEA literatures.
Keywords: Data envelopment analysis (DEA); Variables set selection; Akaike’s information criteria (AIC) (search for similar items in EconPapers)
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