Krivonozhko, Vladimir; R. Førsund, Finn; V. Lychev, Andrey - Økonomisk institutt, Universitetet i Oslo - 2011
Applications of the DEA models show that inadequate results may arise in some cases, two of these inadequacies being: a) too many efficient units may appear in some DEA models; b) a DEA model may show an inefficient unit from the point of view of experts as an efficient one. The purpose of this...