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| الفرق في الفروقات المتدرج× | تصميم دراسة الحدث (دراسة الحدث السببية)× | |
|---|---|---|
| المجال | الاستدلال السببي | الاستدلال السببي |
| العائلة | Regression model | Regression model |
| سنة النشأة | 2021 | 2021 |
| صاحب الطريقة≠ | Callaway & Sant'Anna; Sun & Abraham | Sun & Abraham (2021); Callaway & Sant'Anna (2021) |
| النوع≠ | Quasi-experimental panel causal estimator | Dynamic causal panel regression |
| المصدر التأسيسي≠ | Callaway, B. & Sant'Anna, P. H. C. (2021). Difference-in-Differences with Multiple Time Periods. Journal of Econometrics, 225(2), 200-230. DOI ↗ | Sun, L. & Abraham, S. (2021). Estimating Dynamic Treatment Effects in Event Studies with Heterogeneous Treatment Effects. Journal of Econometrics, 225(2), 175–199. DOI ↗ |
| الأسماء البديلة≠ | staggered DID, staggered adoption DID, heterogeneous treatment DID, Callaway-Sant'Anna estimator | dynamic difference-in-differences, event-study DiD, dynamic treatment effects, leads-and-lags model |
| ذات صلة≠ | 4 | 5 |
| الملخص≠ | Staggered Difference-in-Differences is a generalisation of DID for panel designs in which treatment is rolled out to different groups at different times. Introduced in the modern form by Callaway and Sant'Anna (2021) and Sun and Abraham (2021), it corrects the bias that classical two-way fixed-effects (TWFE) estimators suffer when treatment effects are heterogeneous across cohorts and over time. | The event study design is a generalised difference-in-differences model that estimates a separate treatment-effect coefficient for each period before and after an intervention, tracing the dynamics of the effect over event time. Its modern, heterogeneity-robust form was developed by Sun & Abraham (2021) and Callaway & Sant'Anna (2021). |
| ScholarGateمجموعة البيانات ↗ |
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