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| Differenza nelle Differenze con Dati Panel (Panel DiD / TWFE)× | Abbinamento del punteggio di propensione× | |
|---|---|---|
| Campo≠ | Inferenza causale | Statistica per la ricerca |
| Famiglia≠ | Regression model | Process / pipeline |
| Anno di origine≠ | 1985–2004 | 1983 |
| Ideatore≠ | Ashenfelter & Card (1985); codified by Angrist & Pischke (2009); serial correlation critique by Bertrand, Duflo & Mullainathan (2004) | Paul Rosenbaum and Donald Rubin |
| Tipo≠ | Causal inference / panel regression | Method |
| Fonte seminale≠ | Angrist, J. D., & Pischke, J.-S. (2009). Mostly Harmless Econometrics: An Empiricist's Companion. Princeton University Press. ISBN: 978-0691120355 | Rosenbaum, P. R., & Rubin, D. B. (1983). The central role of the propensity score in observational studies for causal effects. Biometrika, 70(1), 41–55. DOI ↗ |
| Alias≠ | Two-Way Fixed Effects DiD, TWFE, Panel DiD, Panel Diff-in-Diff | PSM, propensity score weighting, covariate balance |
| Correlati≠ | 4 | 3 |
| Sintesi≠ | Panel Data Difference-in-Differences extends the classic two-period DiD design to settings with multiple units observed across many time periods. By absorbing unit-level fixed effects and time fixed effects simultaneously, it isolates the causal effect of a treatment or policy change while controlling for both time-invariant unit heterogeneity and common time shocks affecting all units. | Propensity score matching (PSM) is a method for reducing confounding bias in observational studies by balancing baseline characteristics between treatment groups, simulating randomization. Developed by Rosenbaum and Rubin (1983), it estimates the probability of receiving treatment given observed covariates, then matches or weights treated and control individuals with similar treatment probabilities. Widely used in medicine, epidemiology, and policy evaluation when randomized trials are infeasible or unethical, enabling estimation of treatment effects while controlling for selection bias. |
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