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Esamina i metodi selezionati fianco a fianco; le righe che differiscono sono evidenziate.
| GMM di sistema con rottura strutturale× | Modello Dinamico a Dati Panel× | |
|---|---|---|
| Campo | Econometria | Econometria |
| Famiglia | Regression model | Regression model |
| Anno di origine≠ | 1998–2003 | 1988–1991 |
| Ideatore≠ | Blundell & Bond (System GMM); Bai & Perron (structural break framework) | Arellano & Bond (1991); Holtz-Eakin, Newey & Rosen (1988) |
| Tipo≠ | Dynamic panel estimator with regime change | Dynamic regression / GMM estimation |
| Fonte seminale≠ | Blundell, R., & Bond, S. (1998). Initial conditions and moment restrictions in dynamic panel data models. Journal of Econometrics, 87(1), 115–143. DOI ↗ | Arellano, M., & Bond, S. (1991). Some tests of specification for panel data: Monte Carlo evidence and an application to employment equations. Review of Economic Studies, 58(2), 277–297. DOI ↗ |
| Alias | System GMM with structural breaks, SB-SGMM, break-augmented System GMM, System GMM structural change estimator | dynamic panel model, panel data model with lagged dependent variable, DPD model, Arellano-Bond model |
| Correlati≠ | 6 | 5 |
| Sintesi≠ | Structural Break System GMM extends the Blundell-Bond System GMM estimator for dynamic panel data by explicitly accounting for structural breaks — abrupt regime changes in slopes, intercepts, or dynamics — that, if ignored, bias the coefficient estimates and invalidate the moment conditions that underpin standard GMM inference. | The dynamic panel data model extends standard panel regression by including a lagged value of the outcome variable as a regressor, capturing persistence and adjustment dynamics. Because the lagged dependent variable is correlated with the unit-specific fixed effect, ordinary OLS or within estimators are biased; GMM-based methods using internal instruments are the standard remedy. |
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