sensitivity analysis in two-stage dea

Authors

athena forghani

islamic azad university, science and research branch esmaeil najafi

islamic azad university, science and research branch

abstract

data envelopment analysis (dea) is a method for measuring the efficiency of peer decision making units (dmus) which uses a set of inputs to produce a set of outputs. in some cases, dmus have a two-stage structure, in which the first stage utilizes inputs to produce outputs used as the inputs of the second stage to produce final outputs. one important issue in two-stage dea is the sensitivity of the results of an analysis to perturbations in the data. the current paper looks into combined model for two-stage dea and applies the sensitivity analysis to dmus on the entire frontier. in fact, necessary and sufficient conditions for preserving a dmu's efficiency classiffication are developed when various data changes are applied to all dmus.

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Journal title:
iranian journal of optimization

جلد ۷، شماره ۲، صفحات ۸۷۲-۸۸۶

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