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| Test di Hausman per la Rilevazione di Rotture Strutturali× | Modello a Effetti Fissi× | |
|---|---|---|
| Campo | Econometria | Econometria |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1978 (base); extended through 1990s–2000s | 1971–1978 |
| Ideatore≠ | Jerry A. Hausman (base test, 1978); structural break extension developed in panel econometrics literature | Mundlak (1978); Nerlove (1971); classical panel econometrics |
| Tipo≠ | Specification test | Panel regression estimator |
| Fonte seminale≠ | Hausman, J. A. (1978). Specification tests in econometrics. Econometrica, 46(6), 1251–1271. DOI ↗ | Baltagi, B. H. (2021). Econometric Analysis of Panel Data (6th ed.). Springer. ISBN: 978-3030538002 |
| Alias | Hausman test under structural change, structural change Hausman specification test, break-robust Hausman test, panel specification test with breaks | FE model, within estimator, least squares dummy variable, LSDV regression |
| Correlati | 5 | 5 |
| Sintesi≠ | The Structural Break Hausman Test extends the classical Hausman (1978) specification test to panel or time-series settings where the data-generating process shifts at one or more break points. By detecting structural breaks first and then running the Hausman comparison within each regime, researchers can reliably choose between fixed effects and random effects estimators even when the underlying relationship changes over time. | The fixed effects (FE) model is the workhorse estimator for panel data when unobserved unit-specific characteristics are suspected to correlate with the regressors. By absorbing each entity's time-invariant heterogeneity into a separate intercept, FE isolates the causal effect of within-unit variation and eliminates omitted-variable bias from time-constant confounders. |
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