An inventor's own knowledge is a key input in the innovation process. This knowledge can be built by interacting with … and patents. We document key empirical facts on inventors' productivity over the life cycle, inventors' research teams … better inventors are very strongly correlated with higher subsequent productivity. These facts motivate the main ingredients …

substantial impacts on manufacturing productivity from relative increases in county market access as railroads expanded. In …

Metamorphic progress (productivity growth much faster than average) is often driven by Grilichesian inventions of … methods of inventing. For hybrid seed corn, the enabling invention was double-cross hybridization yielding highly productive …

. To understand how these changing firm demographics have affected growth, we decompose productivity growth into the firms …

During the four years 1995-99 U. S. productivity growth experienced a strong revival and achieved growth rates … transport, motion pictures, radio, indoor plumbing, and made the golden age of productivity growth possible. This paper raises … doubts about the validity of this comparison with the Great Inventions of the past. It dissects the recent productivity …

that links these features of the business environment to cross-firm productivity distributions, entrepreneurs' welfare, and …