GRIPS 政策研究センター Policy Research Center


Jun 17, 2013 Report No:13-10

How to deal with S-shaped curve in DEA

  • Kaoru ToneGRIPS
  • Miki TsutsuiCentral Research Institute of Electric Power Industry
Language English

In DEA we are often puzzled by the big difference in CRS and VRS scores, and by the convex production possibility set syndrome in spite of the S-shaped curve often observed in many real data. In this paper we perform a challenge to these subjects.

Keywords Data envelopment analysis, S-shaped curve, CRS, VRS, scale elasticity, SAS
attachment 13-10.pdf