dirty innovation and production; (ii) optimal policy involves both .carbon taxes. and research subsidies, so that excessive … the switch to clean innovation under laissez-faire when the two inputs are substitutes. Under reasonable parameter values …

“cutthroat”capitalism that generates greater inequality and more innovation and will become the technology leaders, while others …

externalities and their impact on regional innovation. We examine MSA-level patent data during the period 1975-2000 and find that … innovation output is higher in regions where large and small firms coexist. The finding is robust to across-region as well as …

We study the interplay between transportation infrastructure, knowledge flows, and innovation. Exploiting historical … variation, we estimate the effect of U.S. interstate highways on regional innovation. We find that a 10% increase in a region …

Patents are a useful but imperfect reward for innovation. In sectors like pharmaceuticals, where monopoly distortions … lower prices. Innovation prizes and other non-patent rewards are becoming more prevalent in government's innovation policy … therefore can generate the right innovation incentives. …

innovation activities. The selection of high-skill managers is more important for innovation activities. As the economy … investments, but little selection. Closer to the world technology frontier, there is a switch to an innovation-based strategy with …

environmental regulations can spur more rapid innovation. I present a general framework for the analysis of these questions. I …

We study how the market for innovation affects enforcement of patent rights. Conventional wisdom associates the gains … potential gains from trade are more likely to change ownership, suggesting that the market for innovation is efficient. We also …

Cumulative innovation is central to economic growth. Do patent rights facilitate or impede such follow-on innovation …. Patent rights appear to block follow-on innovation only in the technology fields of computers, electronics and medical … small innovators, suggesting that patents may impede the ‘democratization’ of innovation. …