employees to pursue value-enhancing innovative activities. Using patents and citations as proxies for innovation, we identify … that within a country, innovation and economic growth are fostered by stringent laws governing dismissal of employees …, especially in the more innovation-intensive sectors. Firm-level tests within the United States that exploit a discontinuity …

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 …

innovative performance measured as turnover due to innovation, but not between patenting and subsequent employment growth. The …

Why do levels of entrepreneurship differ across America's cities? This paper presents basic facts on two measures of … entrepreneurship: the self-employment rate and the number of small firms. Both of these measures are correlated with urban success … entrepreneurship is linked to a large number of small firms in supplying industries. Finally, there is a strong connection between area …

affect the overall rate at which innovation occurs in the economy. This essay provides an introduction to and review of the … research on social networks most relevant to innovation, with a particular focus on the earliest stages of the innovation … importance of social relationships to innovation or alter the patterns of relationships in ways that might promote innovation …

We estimate differences in innovation behavior between foreign versus U.S.-born entrepreneurs in high-tech industries … characteristics and innovation activities. We find uniformly higher rates of innovation in immigrant-owned firms for 15 of 16 … different innovation measures; the only exception is for copyright/trademark. The immigrant advantage holds for older firms as …