Two-Way Fixed Effects and Differences-in-Differences with Heterogeneous Treatment Effects: A Survey
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Linear regressions with period and group fixed effects are widely used to estimate policies' effects: 26 of the 100 most cited papers published by the American Economic Review from 2015 to 2019 estimate such regressions. It has recently been show that those regressions may produce misleading
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美国国家经济研究局创建时间：
2022-01-01
