Difference-in-differences with variation in treatment timing

The canonical difference-in-differences (DD) estimator contains two time periods, ”pre” and ”post”, and two groups, ”treatment” and ”control”. Most DD applications, however, exploit variation across groups of units that receive treatment at different times. This paper shows that the two-way fixed ef...

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Bibliographic Details

Published in:	Journal of econometrics Vol. 225; no. 2; pp. 254 - 277
Main Author:	Goodman-Bacon, Andrew
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01.12.2021 Elsevier Sequoia S.A
Subjects:	Asymptotic methods Difference-in-differences econometrics Estimating techniques Quantitative analysis Statistical analysis temporal variation Time periods Treatment effect heterogeneity Two-way fixed effects Variation in treatment timing Difference-in-differences Two-way fixed effects Treatment effect heterogeneity Variation in treatment timing
ISSN:	0304-4076, 1872-6895
Online Access:	Get full text
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