Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| GLS se strukturními zlomy× | OLS se strukturálními změnami× | |
|---|---|---|
| Obor | Ekonometrie | Ekonometrie |
| Rodina | Regression model | Regression model |
| Rok vzniku≠ | 1998 (structural break GLS formalization) | 1960–1998 |
| Tvůrce≠ | Bai & Perron (1998); GLS framework by Aitken (1936) | Chow (1960) for the breakpoint test; Bai & Perron (1998) for multiple break estimation |
| Typ≠ | Regression estimator | Segmented linear regression |
| Původní zdroj | 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 ↗ |
| Další názvy | GLS with structural breaks, break-adjusted GLS, structural change GLS, regime-switching GLS | OLS with structural breaks, piecewise OLS, regime-switching OLS, breakpoint regression |
| Příbuzné | 6 | 6 |
| Shrnutí≠ | 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 OLS extends ordinary least squares to allow regression coefficients to shift at one or more breakpoints in time or across regimes. Rather than forcing a single coefficient vector across the entire sample, the model partitions the data and estimates a separate OLS regression within each segment, making it appropriate when economic relationships are suspected to change due to policy shifts, crises, or other structural events. |
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