قارن الطرق

	نموذج ماركوف للتبديل بين الأنظمة (MS-AR / MS-VAR)	Threshold and Smooth-Transition VAR
المجال	الاقتصاد القياسي	الاقتصاد القياسي
العائلة	Regression model	Regression model
سنة النشأة	1989	1998
صاحب الطريقة	Hamilton (1989); Kim & Nelson (1999)	Tsay (multivariate threshold modelling)
النوع	Regime-switching time series model	Nonlinear multivariate time-series model
المصدر التأسيسي	Hamilton, J. D. (1989). A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle. Econometrica, 57(2), 357-384.	Tsay, R. S. (1998). Testing and Modeling Multivariate Threshold Models. Journal of the American Statistical Association, 93(443), 1188-1202.
الأسماء البديلة	regime-switching model, Markov-switching autoregression, MS-AR, MS-VAR	TVAR, STVAR, regime-switching VAR, threshold VAR
ذات صلة	5	5
الملخص	The Markov regime-switching model lets the parameters of a time series change probabilistically across hidden regimes governed by a Markov chain. Introduced by Hamilton (1989) and developed further by Kim and Nelson (1999), it automatically detects business-cycle phases such as expansions and contractions.	Threshold VAR and Smooth-Transition VAR are nonlinear multivariate time-series models in which the coefficients of a vector autoregression switch between regimes according to a threshold variable. Building on Tsay's 1998 treatment of multivariate threshold models, they capture different dynamic structures across phases such as the business cycle, financial crises, or policy differences.