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| Modell med fasta effekter och strukturella brott× | Fixed Effects-modell× | |
|---|---|---|
| Ämnesområde | Ekonometri | Ekonometri |
| Familj | Regression model | Regression model |
| Ursprungsår≠ | 1998 (Bai-Perron); FE estimator classical | 1971–1978 |
| Upphovsperson≠ | Bai & Perron (structural break testing); Mundlak / within-group estimator tradition | Mundlak (1978); Nerlove (1971); classical panel econometrics |
| Typ≠ | Panel regression with regime change | Panel regression estimator |
| Ursprungskälla≠ | Bai, J., & Perron, P. (1998). Estimating and testing linear models with multiple structural changes. Econometrica, 66(1), 47-78. DOI ↗ | Baltagi, B. H. (2021). Econometric Analysis of Panel Data (6th ed.). Springer. ISBN: 978-3030538002 |
| Alias | FE model with structural breaks, break-adjusted fixed effects, panel fixed effects with regime shifts, structural change fixed effects estimator | FE model, within estimator, least squares dummy variable, LSDV regression |
| Närliggande≠ | 6 | 5 |
| Sammanfattning≠ | The structural break fixed effects model extends the standard within-group (FE) panel estimator by allowing the slope coefficients to shift at one or more detected break dates. Each unit's unobserved time-invariant heterogeneity is still removed by demeaning, but separate coefficient regimes are estimated for each sub-period, capturing policy shifts, crises, or technological transitions that would otherwise bias a single-regime FE estimate. | 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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