เปรียบเทียบวิธี

	การทดสอบการเปลี่ยนแปลงโครงสร้างพหุคูณของ Bai-Perron	การทดสอบของ Chow สำหรับการเปลี่ยนแปลงโครงสร้าง
สาขาวิชา	เศรษฐมิติ	เศรษฐมิติ
ตระกูล	Hypothesis test	Regression model
ปีกำเนิด	1998	1960
ผู้ริเริ่ม	Jushan Bai & Pierre Perron	Gregory C. Chow
ประเภท	Sequential hypothesis test for multiple structural breaks	Test for structural break in regression coefficients
แหล่งต้นตำรับ	Bai, J., & Perron, P. (1998). Estimating and testing linear models with multiple structural changes. Econometrica, 66(1), 47–78.	Chow, G. C. (1960). Tests of equality between sets of coefficients in two linear regressions. Econometrica, 28(3), 591–605.
ชื่อเรียกอื่น	Bai-Perron Multiple Break Test, Multiple Structural Change Test, Sequential Structural Break Test, Çoklu Yapısal Kırılma Testi	Chow breakpoint test, structural break test, Chow yapısal kırılma testi
ที่เกี่ยวข้อง	2	2
สรุป	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.	The Chow test, introduced by Gregory Chow in 1960, checks whether the coefficients of a linear regression are the same across two subsamples — that is, whether a structural break occurs at a known point such as a policy change, crisis, or regime shift. It compares the fit of a single pooled regression with the combined fit of two separate regressions; a large improvement from splitting indicates the relationship differs between the two periods or groups.