In endogenous growth theory models have either increasing or constant ranges of product variety. Developments in modem biotechnology however show cases of increasing, decreasing or constant ranges of product variants. We present a simple endogenous growth model allowing for all of these three...

This paper identifies the prominent inventors (star scientists) in the Canadian biotechnology co-inventorship network by taking into consideration either only patent quantity or both patent quantity and quality. The paper studies the positions of these stars in the network structure and results...