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| Quan hệ nhân quả Granger với tham số thay đổi theo thời gian× | Mô hình Vector Tự hồi quy Cấu trúc (SVAR)× | |
|---|---|---|
| Lĩnh vực | Kinh tế lượng | Kinh tế lượng |
| Họ | Regression model | Regression model |
| Năm ra đời≠ | 1969 (Granger); TVP extension ~2005 | 1980 |
| Người khởi xướng≠ | C.W.J. Granger (causality concept); TVP extension developed by Primiceri (2005) and subsequent literature | Sims (1980); identification schemes by Blanchard & Quah (1989) |
| Loại≠ | Causality test / time-varying model | Multivariate time series model |
| Công trình gốc≠ | Granger, C. W. J. (1969). Investigating causal relations by econometric models and cross-spectral methods. Econometrica, 37(3), 424-438. DOI ↗ | Blanchard, O. J., & Quah, D. (1989). The dynamic effects of aggregate demand and supply disturbances. American Economic Review, 79(4), 655-673. link ↗ |
| Tên gọi khác | TVP Granger causality, rolling-window Granger causality, time-varying Granger test, dynamic Granger causality | SVAR, structural vector autoregression, identified VAR, structural VAR model |
| Liên quan≠ | 4 | 5 |
| Tóm tắt≠ | Time-varying parameter Granger causality extends the classical Granger causality framework by allowing the predictive relationships between time series to evolve across time. Instead of assuming fixed causal effects, the model estimates causal coefficients that can shift, capturing structural breaks, regime changes, or gradual evolution in economic or financial relationships. | Structural VAR extends the reduced-form VAR by imposing economic theory-based restrictions that identify orthogonal structural shocks. This allows researchers to disentangle the causal effects of distinct economic disturbances — such as supply versus demand shocks — and trace their dynamic propagation through a system of variables via impulse response functions and forecast error variance decompositions. |
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