Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention
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U.S. invention has become increasingly concentrated around major tech centers since the 1970s, with implications for how much cities across the country share in concomitant local benefits. Is invention becoming a winner-takes-all race? We explore the rising spatial concentration of patents and
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美国国家经济研究局创建时间：
2021-11-01
