How Much Should We Trust Differences-In-Differences Estimates?

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Biases in Dynamic Models with Fixed Effects

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Problems with Instrumental Variables Estimation when the Correlation between the Instruments and the Endogenous Explanatory Variable is Weak

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Semiparametric Difference-in-Differences Estimators

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Asymptotic Theory for Econometricians.

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Some heteroskedasticity-consistent covariance matrix estimators with improved finite sample properties

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PRACTITIONERS’ CORNER: Computing Robust Standard Errors for Within‐groups Estimators^*

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Regional Evolutions

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Cluster-Sample Methods in Applied Econometrics

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Problems with Instrumental Variables Estimation When the Correlation Between the Instruments and the Endogeneous Explanatory Variable is Weak

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Unnatural Experiments? Estimating the Incidence of Endogenous Policies

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Natural and Quasi-Experiments in Economics

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What We Know and Do Not Know About the Natural Rate of Unemployment

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Causal Parameters and Policy Analysis in Economics: A Twentieth Century Retrospective*

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Robus Standard Error Estimation in Fixed-Effects Panel Models

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