GRIPS 政策研究センター Policy Research Center


Nov 1, 2007 Report No:07-08

Network DEA: A slacks-based measure approach

  • Kaoru Tone GRIPS
  • Miki TsutsuiCentral Research Institute of Electric Power Industry
Field Multi Disciplinary policy studies
Language English

Traditional DEA models deal with measurements of relative efficiency of DMUs
regarding multiple-inputs vs. multiple-outputs. One of the drawbacks of these models is
the neglect of intermediate products or linking activities. After pointing out needs for
inclusion of them in DEA models, we propose a slacks-based network DEA model that can deal
with intermediate products. Using this model we can evaluate divisional efficiencies along with
the overall efficiency of decision making units (DMUs).

Keywords Data envelopment analysis, Network DEA, SBM, divisional efficiency, overall efficiency
attachment 07-08.pdf