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An integer-valued data envelopment analysis model with bounded outputs
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DOI：10.1111/j.1475-3995.2011.00828.x.png)
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Abstract
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Integer-valued data envelopment analysis (DEA) with alternative returns to scale technology has been introduced and developed recently by Kuosmanen and Kazemi Matin. The proportionality assumption of their introduced natural augmentability axiom in constant and nondecreasing returns to scale technologies makes it possible to achieve feasible decision-making units (DMUs) of arbitrary large size. In many real world applications it is not possible to achieve such production plans since some of the input and output variables are bounded above. In this paper, we extend the axiomatic foundation of integer-valued DEA models for including bounded output variables. Some model variants are achieved by introducing a new axiom of boundedness over the selected output variables. A mixed integer linear programming (MILP) formulation is also introduced for computing efficiency scores in the associated production set.
Keywords:
data envelopment analysis
integer-valued DEA
efficiency
mixed integer linear programming
bounded outputs
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