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| Analisi dei dati panel× | Modello a Effetti Fissi× | |
|---|---|---|
| Campo | Econometria | Econometria |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1966–1978 | 1971–1978 |
| Ideatore≠ | Balestra & Nerlove (1966); Mundlak (1978); Hausman (1978) | Mundlak (1978); Nerlove (1971); classical panel econometrics |
| Tipo≠ | Panel regression framework | Panel regression estimator |
| Fonte seminale | Baltagi, B. H. (2021). Econometric Analysis of Panel Data (6th ed.). Springer. ISBN: 978-3030539528 | Baltagi, B. H. (2021). Econometric Analysis of Panel Data (6th ed.). Springer. ISBN: 978-3030538002 |
| Alias | longitudinal data analysis, pooled cross-sectional time-series analysis, panel regression, data panel analysis | FE model, within estimator, least squares dummy variable, LSDV regression |
| Correlati | 5 | 5 |
| Sintesi≠ | Panel data analysis models data that track multiple units — countries, firms, individuals — over time, enabling researchers to control for unobserved unit-level heterogeneity that would otherwise bias cross-sectional or time-series estimates. The two core specifications are fixed effects and random effects, selected via the Hausman test. | 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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