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Synthetic Difference In Differences Estimation

Damian Clarke, Daniel Pailañir, Susan Athey, Guido Imbens

arXiv 27 Jan 2023 · Econometrics · 93 citations (OpenAlex)

arXiv:2301.11859 · PDF · DOI · OpenAlex · Extracted main text

Abstract

In this paper, we describe a computational implementation of the Synthetic difference-in-differences (SDID) estimator of Arkhangelsky et al. (2021) for Stata. Synthetic difference-in-differences can be used in a wide class of circumstances where treatment effects on some particular policy or event are desired, and repeated observations on treated and untreated units are available over time. We lay out the theory underlying SDID, both when there is a single treatment adoption date and when adoption is staggered over time, and discuss estimation and inference in each of these cases. We introduce the sdid command which implements these methods in Stata, and provide a number of examples of use, discussing estimation, inference, and visualization of results.

Citation extraction

31
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88
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distinct cited
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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Abadie, A., A. Diamond, and J. Hainmueller (2010) Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California’s Tobacco Control Program1.00083100%
2Arkhangelsky, D., S. Athey, D. A. Hirshberg, G. W. Imbens, and S. Wa… (2021) Synthetic Difference-in-Differences self0.95942788%
3Kranz, S (2022) Synthetic Difference-in-Differences with Time-Varying Covariates0.92843100%
4Bhalotra, S. R., D. Clarke, J. F. Gomes, and A. Venkataramani (2022) Maternal Mortality and Women’s Political Power0.73732100%
5Hirshberg, D. A. Undated synthdid: Synthetic Difference in Differences Estimation. https://synth-inference.github.io/synthdid/0.73732100%
6Ben-Michael, E., A. Feller, and J. Rothstein (2021) The Augmented Synthetic Control Method0.64422100%
7Freyaldenhoven, S., C. Hansen, and J. M. Shapiro (2019) Pre-event Trends in the Panel Event-Study Design0.64422100%
8Abadie, A., and J. Gardeazabal (2003) The Economic Costs of Conflict: A Case Study of the Basque Country0.40511100%
9Abadie, A., and J. L'Hour (2021) A Penalized Synthetic Control Estimator for Disaggregated Data0.40511100%
10Abadie, A., A. Diamond, and J. Hainmueller (2015) Comparative Politics and the Synthetic Control Method0.40511100%

Showing the top 10 of 31 scored citations.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1A Short Note on Event-Study Synthetic Difference-in-Differences Estimators0.69351
2Impact of the Availability of Chat-GPT on Software Development Activity0.40511