Research and teaching
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Sampsa Samila and Olav Sorenson

We argue that social and financial capital have a complementary relationship in fostering innovation, entrepreneurship and economic growth. Using panel data on metropolitan areas in the United States, from 1993 to 2002, our analyses reveal that social integration – in the microgeography of residential patterns – moderates the effect of venture capital, with more integrated regions benefitting more from expansions in the supply of financial capital. Our results remain robust to estimation with an instrumental variable to address potential endogeneity in the geography of venture capital. We also find some evidence for a similar effect from business associations. Our findings support the idea that social structure may contribute importantly to regional economic differences.