Application of data envelopment analysis in management research (case of Russian domestic energy sector)

The idea that different firms can be classified into relatively homogeneous groups has been popular for many years, and many typologies have been developed and tested using a variety of classification tools. It has become apparent, however, that most clustering tools are somewhat limited, because they create groups of companies based on similar characteristics, without taking into account company performance. The objective of the current study was to address the limitations of previous research by creating a typology of companies based on financial efficiency, using data envelopment analysis as a clustering tool.