NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Aaron Chatterji

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Working Papers

May 2013Clusters of Entrepreneurship and Innovation
with Edward L. Glaeser, William R. Kerr: w19013
This paper reviews recent academic work on the spatial concentration of entrepreneurship and innovation in the United States. We discuss rationales for the agglomeration of these activities and the economic consequences of clusters. We identify and discuss policies that are being pursued in the United States to encourage local entrepreneurship and innovation. While arguments exist for and against policy support of entrepreneurial clusters, our understanding of what works and how it works is quite limited. The best path forward involves extensive experimentation and careful evaluation.
March 2013The Impact of City Contracting Set-Asides on Black Self-Employment and Employment
with Kenneth Y. Chay, Robert W. Fairlie: w18884
In the 1980s, many U.S. cities initiated programs reserving a proportion of government contracts for minority-owned businesses. The staggered introduction of these set-aside programs is used to estimate their impacts on the self-employment and employment rates of African-American men. Black business ownership rates increased significantly after program initiation, with the black-white gap falling three percentage points. The evidence that the racial gap in employment also fell is less clear as it is depends on assumptions about the continuation of pre-existing trends. The black gains were concentrated in industries heavily affected by set-asides and mostly benefited the better educated.

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