What Determines Entrepreneurial Clusters?

This research paper contrasts the effects of two factors in determining the rate of entrepreneurial activity across different regions: entry costs and local environment. The cost of starting a new business does not seem to be a factor in creating clusters of industry activity, however, knowledge spillovers and learning opportunities seem to be strong agents for growth.

American Made: The Impact of Immigrant Entrepreneurs and Professionals on US Competitiveness

This National Venture Capital Association study reports that immigrants started two out of every five venture-backed tech companies since 1990. The authors argue that the US must increase the number of visas available to highly-skilled workers in order to maintain its competitive edge.