Pooya Nasrollahian

[ 1 ] - A Method for Solving Super-Efficiency Infeasibility by Adding virtual DMUs with Mean Values

Using super-efficiency, with regard to ranking efficient units, is increasing in DEA. However, this model has some problems such as the infeasibility. Thus, this article studies infeasibility of the input-based super-efficiency model (because of the zero inputs and outputs), and presents a solution by adding two virtual DMUs with mean values (one for inputs and one for outputs). Adding virtual ...