Sadeghi, Jafar; Begen, Mehmet A.; Odegaard, Fredrik - 2021
-parametric efficiency models the epsilon plays a key role as a multiplication factor to the sum of input and output slacks in the objective … guarantee the relative ranking of the evaluated units remain consistent we provide two bounds for the epsilon. The first … ranking invariance guarantee}, is a refinement such that the relative efficiency rankings are provably consistent. We …