This paper measures differences in the innovation performance of different types of firms in the pharmaceutical industry. We compare the innovation performance of incumbent firms with entrants, controlling for differences in the scale and scope of research, both at the firm level and at the...

This paper measures differences in the innovation performance of different types of firms in the pharmaceutical industry. We compare the innovation performance of incumbent firms with entrants, controlling for differences in the scale and scope of research, both at the firm level and at the...

This paper compares the innovation performance of established pharmaceutical firms and biotech companies, controlling for differences in the scale and scope of research. We develop a structural model to analyze more than 3,000 drug R&D projects advanced to pre-clinical and clinical trials in the...

This paper explored an unusually comprehensive dataset of more than 2,000 drug R&D projects all over the world during the 1990s. This enabled us to characterise several features of the innovation process in pharmaceuticals, particularly the different role and comparative R&D performance of the...

This paper explored an unusually comprehensive dataset of more than 2,000 drug R&D projects all over the world during the 1990s. This enabled us to characterise several features of the innovation process in pharmaceuticals, particularly the different role and comparative R&D performance of the...

This paper investigates patterns of industrial dynamics and competition in the pharmaceutical industry, with particular reference to the consequences of patent expiry in different countries. We focus on the competition at the level of single chemical entities, distinguishing between original...