Back to Basics: Why do Firms Invest in Research?
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If scientific knowledge is a public good, why do firms invest in research? This paper revisits this classic question with new data on patent citations to scientific publications by corporations. Using data on 4,736 firms for the period 1980-2006, we document that corporate investment in research is
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美国国家经济研究局创建时间：
2017-02-01
