The internet, peer-to-peer technology and mobile devices are radically changing markets for digital media such as recorded music. Incumbent companies in these industries have severe difficulties in reacting to these changes and finding effective business models. The fundamental challenge is how...

This paper provides the first taxonomy of hospital efficiency studies that uses data envelopment analysis (DEA) and related techniques. We provide a systematic review of 79 such studies published from 1984-2004 that represent 12 countries. Only studies written in English are considered. A...