| Article ID: | iaor1997490 |
| Country: | Netherlands |
| Volume: | 18 |
| Issue: | 3 |
| Start Page Number: | 147 |
| End Page Number: | 151 |
| Publication Date: | Oct 1995 |
| Journal: | Operations Research Letters |
| Authors: | Knox Lovell C.A., Pastor Jess T. |
| Keywords: | statistics: data envelopment analysis |
In this paper the authors discuss the desirable properties of units invariance and translation invariance, and they note which DEA models satisfy one or the other of these properties. No currently known DEA model satisfies both properties. The authors then introduce two new DEA models. One satisfies units invariance and partial translation invariance, and the other satisfies both properties.