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	संरचनात्मक ब्रेक डब्ल्यूएलएस (संरचनात्मक ब्रेक सुधार के साथ भारित न्यूनतम वर्ग)	स्ट्रक्चरल ब्रेक जीएलएस (Structural Break GLS)
क्षेत्र	अर्थमिति	अर्थमिति
परिवार	Regression model	Regression model
उद्भव वर्ष	1998 (break framework); WLS long-established	1998 (structural break GLS formalization)
प्रवर्तक	Bai & Perron (structural break framework); WLS classical	Bai & Perron (1998); GLS framework by Aitken (1936)
प्रकार	Weighted regression with regime shifts	Regression estimator
मौलिक स्रोत	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.
उपनाम	WLS with structural change, break-corrected WLS, segmented WLS, structural break weighted regression	GLS with structural breaks, break-adjusted GLS, structural change GLS, regime-switching GLS
संबंधित	5	6
सारांश	Structural Break WLS combines Weighted Least Squares estimation with explicit detection and correction for structural breaks — abrupt regime shifts — in the data. By identifying break points and assigning observation-level weights that account for heteroscedasticity within and across regimes, the estimator delivers consistent, efficient coefficient estimates even when the error variance changes dramatically at a break.	Structural Break GLS combines Generalized Least Squares estimation with explicit allowance for regime shifts in the data-generating process. The method estimates separate coefficient vectors for each segment defined by detected break dates while correcting for non-spherical errors — heteroscedasticity or autocorrelation — that frequently accompany structural change, yielding consistent and efficient estimates across all regimes.