The Causal Effect of Foreign Ideas on U.S. Innovation
Globalization is once again better than many people realize: We study the role of foreign ideas in U.S. innovation by constructing a directed “genealogy” of technologies from the full text of 13 million patents filed between 1887 and 2024. By tracing which earlier technologies appear in the founding patents of new ones, we recover a […] The post The Causal Effect of Foreign Ideas on U.S. Innovation appeared first on Marginal REVOLUTION. CommentsI went back and read Nicolas Kristof’s pro globa...
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Marginal Revolution (United States) | Oct 21, 2026
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