Modified Super Efficiency in Presence of Infeasibility: A Nonradial Approach


1 Department of Mathematics Science and Research Branch, Islamic Azad University Tehran, Iran

2 Department of Electrical Computer and Biomedical Engineerin, Islamic Azad University-Qazvin Branch Qazvin, Iran


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