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Keywords
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Network Data Envelopment Analysis (NDEA), Decision Making Units (DMU), epsilon ,assurance
interval, assurance value
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Abstract
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The role of g value in Data Envelopment Analysis (DEA) is obvious for DEA researchers and
improperly determining this value leads to unfeasibility/infinity of multiplier form/envelop in DEA problems.
Thus, Ali and Seiford in (1993) suggesting a bound for claimed that it would prevent unfeasibility/infinity of
multiplier forms/ envelope of DEA problems. Mehrabian et al. ( 2000) rejected the validity of the boundary and
offered another boundary for in CCR and BCC Models of DEA and further, determined aassurance value for
under special terms. Assigning value in network structures may cause encountering unfeasibility/infinity of
multiplier forms/envelope challenge. Therefore, the purpose of this study is to determine boundary in network
structure and to define assurance value.
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