Although DEA does not need a priori information on the underlying functional forms and weights among various input and output measures, it assumes proportional improvements of inputs or outputs. This assumption becomes invalid when a preference structure over the improvement of different inputs (outputs) is present in evaluating (inefficient) DMUs (see Chapter 4). We need models where a particular set of performance measures is given pre-emptive priority to improve.


Efficiency Score Market Value Spreadsheet Model Inefficient DMUs Fortune Magazine 
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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Joe Zhu
    • 1
  1. 1.Worcester Polytechnic InstituteUSA

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