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Congestion analysis in DEA inputs under weight restrictions

Author

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  • A Davoodi

    (Islamic Azad University, Neyshabur, Iran)

  • H Zhiani Rezai

    (Islamic Azad University, Mashhad, Iran)

  • R Fallahnejad

    (Islamic Azad University, Khoramabad, Iran)

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.

Suggested Citation

  • A Davoodi & H Zhiani Rezai & R Fallahnejad, 2012. "Congestion analysis in DEA inputs under weight restrictions," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 63(8), pages 1089-1097, August.
    • Handle: RePEc:pal:jorsoc:v:63:y:2012:i:8:p:1089-1097
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