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Congestion analysis in DEA inputs under weight restrictions

A Davoodi, H Zhiani Rezai and R Fallahnejad
The Journal of the Operational Research Society
Vol. 63, No. 8 (AUGUST 2012), pp. 1089-1097
Stable URL: http://www.jstor.org/stable/23251225
Page Count: 9
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Congestion analysis in DEA inputs under weight restrictions
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Abstract

Data envelopment analysis (DEA), which is used to determine the efficiency of a decision-making unit (DMU), is able to recognize the amount of input congestion. Moreover, the relative importance of inputs and outputs can be incorporated into DEA models by weight restrictions. These restrictions or a priori weights are introduced by the decision maker and lead to changes in models and efficiency interpretation. In this paper, we present an approach to determine the value of congestion in inputs under the weight restrictions. Some discussions show how weight restrictions can affect the congestion amount.

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