Finding strong defining hyperplanes of DEA-R-I model

In many applications of DEA data are ratio. Such as fiscal organization and accounting data. There are different point of view to evaluation the DMUs with ratio data. In DEA-R model we consider the ratio between inputs and outputs as independent indexes. In other word according to the suitable orientation we consider the input / output ratios as inputs in input oriented and output / input ratios as outputs in output oriented. There are many studies about DEA-R which consider the efficiency measure and weights interpretation of it. In this paper we proposed the algorithm to find the strong defining hyperplanes of DEA-R model. This study helps to determination the sensitivity analysis of model

Keywords:

DEA , DEA-R model , strong hyperplane , ratio data