Journal
JOURNAL OF INTELLIGENT & FUZZY SYSTEMS
Volume 40, Issue 1, Pages 591-603Publisher
IOS PRESS
DOI: 10.3233/JIFS-200386
Keywords
Inverse DEA; network DEA; two-stage network; cost efficiency; input/output estimation
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This paper proposes a four-stage method to estimate the inputs and outputs of DMUs with a two-stage network structure method, while keeping the allocative efficiency scores of all units stable.
Inputs and outputs of Decision Making Units (DMUs) are estimated by the Inverse Data Envelopment Analysis (InvDEA) models, while their relative efficiency scores remain unchanged. But, in some cases, cost/price information of the inputs and outputs are available. This paper employs the input and output cost/price information, including the generalized InvDEA concept in two-stage structures. To this end, it proposes a four-stage method to deal with the InvDEA concept, for estimating the inputs and outputs of the DMUs with a two-stage network structure method, while the allocative efficiency scores of all the units remain stable. Eventually, an empirical example is rendered to illustrate the competence of the method which is presented.
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