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 …

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 …

Interest in the role of entrepreneurial entry in innovation raises the question of the extent to which tax policy … entry, the progressivity of the tax also discourages entrepreneurship, and significantly so for some groups of households … innovative entrepreneurs confounds interpreting this specification. Using education as a measure of potential for innovation, we …

metro area. We highlight the importance of transportation infrastructure in shaping urban social networks by showingthat … travel time and travel costs are substantially stronger predictors of social connectedness between zip codes than geographic … connectedness. We also explore the social connections between New York zip codes and foreign countries, and highlight how these are …

government funding programs increased local innovation, particularly when the programs focused on early-stage ventures or …