Article ID: | iaor200950394 |
Country: | Netherlands |
Volume: | 30 |
Issue: | 3 |
Start Page Number: | 169 |
End Page Number: | 175 |
Publication Date: | Dec 2008 |
Journal: | Journal of Productivity Analysis |
Authors: | Fre Rolf, Chambers Robert G |
DEA models are not amenable to differential arguments for extreme efficient units. Consequently, function representations of the approximating technology are not differentiable in the usual sense. Dually, this nondifferentiability is manifested by multiple optima to the Charnes