The author makes an attempt to assess the relative efficiency of Polish commercial banks using non-paramteric Data Envelopment Analysis. In the empirical research, use has been made of panel data – 24 commercial banks in 4 years (2001–2004). The results of sequential DEA method (which...

In the article, the author presents Data Envelopment Analysis, which is a method for measuring relative technical efficiency. The idea of DEA method is illustrated by a simple example, where objects characterized by one input and one output only are considered. Next, a the basic DEA model (CCR...

This article contains a method for classifying Data Envelopment Analysis models. Two main criteria i.e. orientation and returns to scale are used. These criteria enable distinguishing between oriented and non-oriented DEA models with constant and variable returns to scale. Basic properties of...