How much should we trust staggered difference-in-differences estimates?

We explain when and how staggered difference-in-differences regression estimators, commonly applied to assess the impact of policy changes, are biased. These biases are likely to be relevant for a large portion of research settings in finance, accounting, and law that rely on staggered treatment tim...

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Bibliographic Details
Published in:Journal of financial economics 2022-05, Vol.144 (2), p.370-395
Main Authors: Baker, Andrew C., Larcker, David F., Wang, Charles C.Y.
Format: Article
Language:English
Subjects:
Bias
Difference in differences
Dynamic treatment effects
Econometrics
Economic policy
Errors
Estimating techniques
Finance
Financial economics
Generalized difference-in-differences
Policy making
Regression analysis
Staggered difference-in-differences
Treatment effect heterogeneity
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