Modified Super Efficiency in Presence of Infeasibility: A Nonradial Approach

Abstract

As regards of supper efficiency models which increased the<br />discrimination power of the standard DEA models, still infeasibility may<br />occure. In literature there exists some models overcome this difficulty.<br />In this paper a new procedure has been mooted in order to remove this<br />shortcoming in a way that both input savings and output surplus are<br />being considered. This procedure deals with nonradial changes for both<br />inputs and outputs at the same time. The great feature of this model is<br />its simplicity and that correspondence linear counter part can be easily<br />written.