Scientific knowledge is believed to be the wellspring of innovation. Historically, firms have also invested in research … to fuel innovation and growth. In this paper, we document a shift away from scientific research by large corporations … innovation. Large firms appear to value the golden eggs of science (as reflected in patents) but not the golden goose itself (the …

-skill intensive and are associated with innovation, as well as with technology adoption, management, and diffusion within firms. Using …

two strategies toward that end: imitation and innovation. The theory bears predictions about the evolution of the …

We model early expectations about the value and technological importance ('quality') of a patented innovation as a …

's most persistent pockets of joblessness. Could a more even spatial distribution of innovation reduce American joblessness …? Could Federal policies disperse innovation without significant costs? If research funding is already maximizing knowledge … production, then spatial reallocation of that funding will reduce America's overall innovation unless that reallocation comes …

How does firm entry affect innovation incentives and productivity growth in incumbent firms? Micro-data suggests that … threat spurs innovation incentives in sectors close to the technological frontier--successful innovation allows incumbents to … prevent entry. In laggard sectors it discourages innovation--increased entry threat reduces incumbents' expected rents from …