So sánh phương pháp

	OLS mạnh mẽ (OLS với sai số chuẩn mạnh mẽ)	Hồi quy Bình phương Tối thiểu Thông thường (OLS)
Lĩnh vực	Kinh tế lượng	Kinh tế lượng
Họ	Regression model	Regression model
Năm ra đời	1980	2019
Người khởi xướng	Halbert White	Wooldridge (textbook treatment); classical least squares
Loại	Linear regression with robust inference	Linear regression
Công trình gốc	White, H. (1980). A heteroskedasticity-consistent covariance matrix estimator and a direct test for heteroskedasticity. Econometrica, 48(4), 817–838.	Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860
Tên gọi khác	HC robust regression, White robust OLS, sandwich estimator OLS, OLS with robust standard errors	ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu
Liên quan	6	5
Tóm tắt	Robust OLS applies ordinary least squares to estimate coefficients and then replaces the classical standard errors with heteroscedasticity-consistent (HC) standard errors — commonly called White standard errors. This leaves the point estimates unchanged while yielding valid t-statistics and confidence intervals even when the error variance is not constant across observations.	Ordinary Least Squares is the classical linear regression method that explains a continuous outcome as a linear combination of predictors. It estimates the coefficients by minimising the sum of squared residuals, and under the Gauss-Markov assumptions these estimates are the best linear unbiased estimator (BLUE).