विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| विषम उपचार प्रभाव अंतर-में-अंतर (HTE-DiD)× | अंतर-में-अंतर (डिफ-इन-डिफ)× | |
|---|---|---|
| क्षेत्र≠ | कारणात्मक अनुमान | अर्थमिति |
| परिवार | Regression model | Regression model |
| उद्भव वर्ष≠ | 2021 | 1994 |
| प्रवर्तक≠ | Callaway & Sant'Anna; Sun & Abraham | Card & Krueger (canonical 1994 application); Angrist & Pischke (textbook treatment) |
| प्रकार | Causal inference / panel regression | Causal inference / panel regression |
| मौलिक स्रोत≠ | Callaway, B., & Sant'Anna, P. H. C. (2021). Difference-in-Differences with multiple time periods. Journal of Econometrics, 225(2), 200-230. DOI ↗ | Angrist, J. D., & Pischke, J.-S. (2009). Mostly Harmless Econometrics: An Empiricist's Companion. Princeton University Press. ISBN: 978-0691120355 |
| उपनाम≠ | HTE-DiD, heterogeneous DiD, CATT estimator, group-time ATT | diff-in-diff, DiD, Farkların Farkı (Diff-in-Diff) |
| संबंधित≠ | 4 | 5 |
| सारांश≠ | 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. | Difference-in-Differences is a causal-inference method that estimates the effect of an intervention by comparing how a treatment group and a control group change over time. Made famous by Card and Krueger's 1994 minimum-wage study and developed in Angrist and Pischke's Mostly Harmless Econometrics, it isolates the treatment effect as the difference between the two groups' before-after changes. |
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