Article ID: | iaor2006355 |
Country: | Netherlands |
Volume: | 28 |
Issue: | 2 |
Start Page Number: | 93 |
End Page Number: | 98 |
Publication Date: | Mar 2001 |
Journal: | Operations Research Letters |
Authors: | Cherchye Laurens, Puyenbroeck Tom Van |
Keywords: | statistics: data envelopment analysis |
Coelli introduced a multi-stage (MS-) DEA methodology that represents an interesting alternative for the treatment of slacks remaining after proportional correction in inputs or outputs. By solving a sequence of radial models, one thus arrives at the identification of “more representative efficient points” (in terms of similar input/output mixes). We show that “most representative efficient points” can be found using a direct approach and may differ from those obtained by MS-DEA. Nevertheless, MS-DEA remains very attractive in view of its economic (intrinsic price) legitimation.