product (or "downstream") sector. Innovation takes place in both sectors. Following Gilbert and Shapiro (1990), we define … in the downstream sector increases the incentives of agents to do R&D in that sector but discourages innovation in the … downstream sector slows it down. We show that regardless of parameter values, welfare maximizing, rate of innovation maximizing …

in industries where technological and organizational innovation is important. Indeed a large literature has grown up on … ways they evolve over time. Another domain concerns the nature of competition in such industries, wherein innovation and … briefly flag some fundamental aspects of economic growth and development as an innovation-driven evolutionary process. …

such applications, a key role is played by complementarities in the process of innovation. …

may even reduce welfare. The reason is that it crowds out proprietary innovation which on net may reduce total innovation … in the long run. These effects would be reinforced if philanthropical innovation diverted people from other productive …