Network DEA Models for Evaluating Couriers and Messengers

The purpose of the article is to present the use of network DEA models in evaluating courier and messenger companies. A general network DEA concept to deal with efficiency assessments in multi-stage processes has been provided in this dissertation. Then, the framework of a special DEA network model as an alternative for traditional DEA model to evaluate courier and messenger companies was presented. A numerical example was given to illustrate this approach.