In a recent paper on measuring efficiency of hospitals by Al‐Shammari a set of 15 hospitals were compared across three years with respect to multiple inputs and outputs. Data envelopment analysis (DEA) was utilized in the evaluation process. The results of this study provide some very useful...

A highly complicated project management system including several simultaneously realized PERT-COST type network projects, is considered. The projects are of different importance and significance; for each project its corresponding priority index is pre-given. The total budget at the project...

The standard DEA model can be applied to a mix of categorical and continuous variables by entering all combinations of them as different types of inputs and/or outputs. Theoretical implications for the nature of feasible peers are investigated.