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Avoiding dissimilarity between the weights of the optimal DEA solutions

  • Dariush AkbarianEmail author
Application Article


The zero weights in data envelopment analysis evaluation causes some problems such as ignoring the some inputs and/or outputs of DMUs under evaluation. Moreover, some authors claimed that the great differences in weights might be a problem. The aim of this paper is to extend the multiplier bound approach to avoid zero weights and great differences in the values of multipliers more. We show that our proposed model is equivalent to the type I assurance region model that will be used in the evaluation efficiency.


Data envelopment analysis Non-zero weights Assurance region 



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Copyright information

© Operational Research Society of India 2019

Authors and Affiliations

  1. 1.Department of Mathematics, Arak BranchIslamic Azad UniversityArakIran

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