手法を比較

	ベイズ構造VAR（B-SVAR）モデル	構造的ベクトル自己回帰 (SVAR)
分野	計量経済学	計量経済学
系統	Regression model	Regression model
提唱年	1998–2005	1980
提唱者	Sims & Zha (1998); Uhlig (2005) for sign-restriction identification	Sims (1980); identification schemes by Blanchard & Quah (1989)
種類	Structural multivariate time-series model	Multivariate time series model
原典	Sims, C. A., & Zha, T. (1998). Bayesian methods for dynamic multivariate models. International Economic Review, 39(4), 949–968.	Blanchard, O. J., & Quah, D. (1989). The dynamic effects of aggregate demand and supply disturbances. American Economic Review, 79(4), 655-673.
別名	Bayesian SVAR, B-SVAR, Bayesian structural VAR, Bayesian identified VAR	SVAR, structural vector autoregression, identified VAR, structural VAR model
関連	6	5
概要	The Bayesian Structural Vector Autoregression model combines the structural identification of SVAR with Bayesian prior distributions over parameters. It estimates causal impulse responses between multiple time series while incorporating prior economic knowledge and producing full posterior uncertainty bands rather than point estimates alone.	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.