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	Robust SVAR-modell (Robust SVAR)	Robust ARIMA-modell
Ämnesområde	Ekonometri	Ekonometri
Familj	Regression model	Regression model
Ursprungsår	2000s–2010s	1986–1993
Upphovsperson	Extension of Sims (1980) SVAR with robust inference methods	Tsay (1986); Chen & Liu (1993)
Typ	Structural time series model	Robust time series model
Ursprungskälla	Lutkepohl, H. (2005). New Introduction to Multiple Time Series Analysis. Springer. ISBN: 978-3540401728	Tsay, R. S. (1986). Time series model specification in the presence of outliers. Journal of the American Statistical Association, 81(393), 132–141.
Alias	robust SVAR, robust structural VAR, heteroscedasticity-robust SVAR, outlier-robust structural VAR	robust ARIMA, outlier-resistant ARIMA, robust time series estimation, ARIMA with outlier detection
Närliggande	6	4
Sammanfattning	The Robust SVAR model extends the classical Structural VAR framework by incorporating robust estimation and inference methods that remain valid in the presence of heteroscedasticity, non-Gaussian errors, or outliers. By combining structural identification with robust statistical procedures, it produces reliable impulse responses and forecast error variance decompositions even when standard SVAR assumptions are violated in macroeconomic data.	Robust ARIMA extends the classical ARIMA framework to detect and correct the influence of outliers and structural breaks during estimation. By jointly identifying anomalous observations and re-estimating model parameters, it produces coefficient estimates and forecasts that are far less distorted by isolated shocks or data errors than standard ARIMA.