When Does Funding Research by Smaller Firms Bear Fruit?: Evidence from the SBIR Program
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This paper evaluates whether the relative concentration of funding for small, research-oriented firms in a small number of high-tech industries is related to the differences across industries in the level of appropriability or capital constraints facing small firms. To do so, we exploit a novel test
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美国国家经济研究局创建时间：
2000-09-01
