Krahasoni metodat

	Modeli SARIMA me Ndërprerje Strukturore	Testi Bai-Perron për Ndarje Strukturore Shumefishe
Fusha	Ekonometri	Ekonometri
Familja	Regression model	Hypothesis test
Viti i origjinës	1970s–1998	1998
Krijuesi	Box & Jenkins (SARIMA); Bai & Perron (structural break detection)	Jushan Bai & Pierre Perron
Lloji	Time series model with regime shifts	Sequential hypothesis test for multiple structural breaks
Burimi themelues	Bai, J., & Perron, P. (1998). Estimating and testing linear models with multiple structural changes. Econometrica, 66(1), 47–78.	Bai, J., & Perron, P. (1998). Estimating and testing linear models with multiple structural changes. Econometrica, 66(1), 47–78.
Emërtime të tjera	SARIMA with structural breaks, break-augmented SARIMA, piecewise SARIMA, SARIMA-SB	Bai-Perron Multiple Break Test, Multiple Structural Change Test, Sequential Structural Break Test, Çoklu Yapısal Kırılma Testi
Të lidhura	3	2
Përmbledhja	The Structural Break SARIMA model extends the classical Seasonal ARIMA framework by explicitly detecting and accommodating abrupt, permanent shifts in the level, trend, or seasonal pattern of a time series. Rather than forcing a single SARIMA specification across the entire sample, the model partitions the series at estimated breakpoints and fits separate SARIMA processes to each resulting segment, producing more accurate forecasts and reliable inference in the presence of regime changes.	The Bai-Perron test, introduced by Jushan Bai and Pierre Perron in their landmark 1998 Econometrica paper, is a least-squares-based procedure for detecting, estimating, and testing the number of structural breaks in a linear regression model estimated on time-series data. Unlike single-break tests, it simultaneously identifies multiple change-points in a sample, providing economists and empirical researchers with a rigorous, data-driven way to locate parameter instability across time.