So sánh phương pháp

	Mô hình MA có đứt gãy cấu trúc	Mô hình AR với điểm đứt gãy cấu trúc
Lĩnh vực	Kinh tế lượng	Kinh tế lượng
Họ	Regression model	Regression model
Năm ra đời	1989–1992	1989-2003
Người khởi xướng	Perron (1989); Zivot & Andrews (1992)	Perron (1989); Bai & Perron (1998, 2003)
Loại	Time series model with structural change	Time-series model with structural change
Công trình gốc	Perron, P. (1989). The great crash, the oil price shock, and the unit root hypothesis. Econometrica, 57(6), 1361–1401.	Bai, J., & Perron, P. (2003). Computation and analysis of multiple structural change models. Journal of Applied Econometrics, 18(1), 1-22.
Tên gọi khác	MA model with structural change, broken MA model, MA with regime shift, structural break moving average	AR model with structural change, breakpoint AR model, piecewise autoregressive model, AR model with regime shifts
Liên quan	5	6
Tóm tắt	A Moving Average (MA) time series model augmented to accommodate one or more structural breaks — abrupt shifts in the mean, variance, or MA coefficients occurring at known or unknown break dates. Ignoring structural breaks in an MA process inflates forecast errors and distorts inference on the error dynamics.	The structural break AR model extends the standard autoregressive framework by allowing the intercept and autoregressive coefficients to shift at one or more unknown break dates. Each regime between consecutive break points is governed by its own AR parameters, capturing abrupt changes in the dynamics of a time series caused by crises, policy shifts, or other shocks.