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| Strukturelle Bruch-GLS× | Structural Break WLS× | |
|---|---|---|
| Fachgebiet | Ökonometrie | Ökonometrie |
| Familie | Regression model | Regression model |
| Entstehungsjahr≠ | 1998 (structural break GLS formalization) | 1998 (break framework); WLS long-established |
| Urheber≠ | Bai & Perron (1998); GLS framework by Aitken (1936) | Bai & Perron (structural break framework); WLS classical |
| Typ≠ | Regression estimator | Weighted regression with regime shifts |
| Wegweisende Quelle≠ | Bai, J., & Perron, P. (1998). Estimating and testing linear models with multiple structural changes. Econometrica, 66(1), 47–78. DOI ↗ | Bai, J., & Perron, P. (1998). Estimating and testing linear models with multiple structural changes. Econometrica, 66(1), 47-78. DOI ↗ |
| Aliasnamen | GLS with structural breaks, break-adjusted GLS, structural change GLS, regime-switching GLS | WLS with structural change, break-corrected WLS, segmented WLS, structural break weighted regression |
| Verwandt≠ | 6 | 5 |
| Zusammenfassung≠ | Structural Break GLS combines Generalized Least Squares estimation with explicit allowance for regime shifts in the data-generating process. The method estimates separate coefficient vectors for each segment defined by detected break dates while correcting for non-spherical errors — heteroscedasticity or autocorrelation — that frequently accompany structural change, yielding consistent and efficient estimates across all regimes. | Structural Break WLS combines Weighted Least Squares estimation with explicit detection and correction for structural breaks — abrupt regime shifts — in the data. By identifying break points and assigning observation-level weights that account for heteroscedasticity within and across regimes, the estimator delivers consistent, efficient coefficient estimates even when the error variance changes dramatically at a break. |
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