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Heterogeneous Treatment Effect Difference-in-Differences/Evidence
Method evidence record

Heterogeneous Treatment Effect Difference-in-Differences

HTE-DiD extends the classic Difference-in-Differences estimator to settings where treatment effects vary across units, time periods, or treatment cohorts. Developed formally by Callaway and Sant'Anna (2021) and Sun and Abraham (2021), it avoids the biases that arise when a conventional two-way fixed-effects regression is used with staggered adoption or effect heterogeneity, by estimating cohort-and-time-specific average treatment effects that can then be aggregated flexibly.

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Heterogeneous Treatment Effect Difference-in-Differences Estimator
Taxonomic method record · regression-model / causal-inference
  • Callaway, B., & Sant'Anna, P. H. C. (2021). Difference-in-Differences with multiple time periods. Journal of Econometrics, 225(2), 200-230. · DOI 10.1016/j.jeconom.2020.12.001
  • Sun, L., & Abraham, S. (2021). Estimating dynamic treatment effects in event studies with heterogeneous treatment effects. Journal of Econometrics, 225(2), 175-199. · DOI 10.1016/j.jeconom.2020.09.006
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Related methods

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Same method familyDifference-in-Differencesmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketDynamic Difference-in-Differencesmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketPanel Data Difference-in-Differencesmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketSynthetic Control Methodmachine-suggested · Relational suggestion, not evidence.

Evidence status

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Sources

2 recorded citations, copied from the method source record.

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