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| Nguyên nhân học Granger kiểu Bayes× | Mô hình Vector Tự hồi quy Bayes (BVAR)× | |
|---|---|---|
| Lĩnh vực | Kinh tế lượng | Kinh tế lượng |
| Họ | Regression model | Regression model |
| Năm ra đời≠ | 1969 (frequentist); 1984 (Bayesian treatment) | 1984 |
| Người khởi xướng≠ | Clive W. J. Granger (frequentist basis, 1969); Bayesian extension by Geweke (1984) and subsequent literature | Doan, Litterman & Sims |
| Loại≠ | Bayesian causal inference test | Multivariate time-series model |
| Công trình gốc≠ | Geweke, J. (1984). Inference and causality in economic time series models. Handbook of Econometrics, 2, 1101-1144. Elsevier. link ↗ | Doan, T., Litterman, R., & Sims, C. (1984). Forecasting and conditional projection using realistic prior distributions. Econometric Reviews, 3(1), 1–100. DOI ↗ |
| Tên gọi khác | Bayesian Granger test, Bayesian predictive causality, BGC, Bayesian causality in mean | BVAR, Bayesian VAR, Bayesian vector autoregressive model, BVAR model |
| Liên quan≠ | 6 | 5 |
| Tóm tắt≠ | Bayesian Granger causality tests whether past values of one time series carry predictive information about another, framing the hypothesis through Bayesian inference rather than frequentist p-values. It combines a vector autoregressive (VAR) structure with prior distributions over coefficients and evaluates causal claims via posterior probabilities or Bayes factors, providing a probabilistic and nuanced alternative to the classical Granger test. | The Bayesian Vector Autoregression (BVAR) model extends the classical VAR framework by incorporating prior beliefs about the model coefficients. Priors — most commonly the Minnesota prior — shrink VAR coefficients toward economically sensible values, dramatically reducing overfitting and improving out-of-sample forecast accuracy even when the number of variables is large. |
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