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| Ước lượng GMM hệ thống cho dữ liệu bảng (Ước lượng Blundell-Bond)× | Mô hình hiệu ứng cố định bảng× | |
|---|---|---|
| Lĩnh vực | Kinh tế lượng | Kinh tế lượng |
| Họ | Regression model | Regression model |
| Năm ra đời≠ | 1998 | 1978 |
| Người khởi xướng≠ | Blundell & Bond (1998); Arellano & Bover (1995) | Mundlak (1978); classical treatment in Wooldridge (2010) and Baltagi (2021) |
| Loại≠ | GMM estimator for dynamic panel data | Panel regression estimator |
| Công trình gốc≠ | Blundell, R., & Bond, S. (1998). Initial conditions and moment restrictions in dynamic panel data models. Journal of Econometrics, 87(1), 115–143. DOI ↗ | Wooldridge, J. M. (2010). Econometric Analysis of Cross Section and Panel Data (2nd ed.). MIT Press. ISBN: 978-0262232586 |
| Tên gọi khác | System GMM, Blundell-Bond estimator, SYS-GMM, two-step System GMM | within estimator, FE model, within-group estimator, LSDV model |
| Liên quan≠ | 6 | 5 |
| Tóm tắt≠ | Panel System GMM is a two-equation GMM estimator for dynamic panel data that stacks the differenced equation (using lagged levels as instruments) with the levels equation (using lagged differences as instruments). Developed by Blundell and Bond (1998) on the foundation of Arellano and Bover (1995), it is the preferred tool when the lagged dependent variable is highly persistent or individual effects are large. | The panel fixed effects (FE) model controls for all time-invariant, unit-specific unobserved heterogeneity by absorbing it into individual intercepts. By sweeping out unit means through the within transformation, FE yields unbiased estimates of the effect of time-varying regressors even when omitted unit-level confounders are correlated with those regressors. |
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