This paper analyses market valuations of UK companies using a new data set of their R&Dand IP activities (1989-1999). In contrast to previous studies, the analysis is conducted at thesectoral level, where the sectors are based on the technological classification in Pavitt (1984).The first main...

This paper reviews the literature on the economics of intellectual property rights (IPR), with a particular focus on the main industrial property rights of patents and trade marks. Intellectual property rights arise from the legal protection accorded to certain inventions or creations. We begin...