পদ্ধতির তুলনা করুন

	সময়-পরিবর্তনশীল প্যারামিটার গ্র্যাঞ্জার কার্যকারণ	কাঠামোগত ভেক্টর অটোরিগ্রেশন (SVAR)
ক্ষেত্র	অর্থমিতি	অর্থমিতি
পরিবার	Regression model	Regression model
উদ্ভবের বছর	1969 (Granger); TVP extension ~2005	1980
প্রবর্তক	C.W.J. Granger (causality concept); TVP extension developed by Primiceri (2005) and subsequent literature	Sims (1980); identification schemes by Blanchard & Quah (1989)
ধরন	Causality test / time-varying model	Multivariate time series model
মৌলিক উৎস	Granger, C. W. J. (1969). Investigating causal relations by econometric models and cross-spectral methods. Econometrica, 37(3), 424-438.	Blanchard, O. J., & Quah, D. (1989). The dynamic effects of aggregate demand and supply disturbances. American Economic Review, 79(4), 655-673.
অপর নাম	TVP Granger causality, rolling-window Granger causality, time-varying Granger test, dynamic Granger causality	SVAR, structural vector autoregression, identified VAR, structural VAR model
সম্পর্কিত	4	5
সারসংক্ষেপ	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.