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| Παλινδρόμηση Ελαχίστων Τετραγώνων (OLS)× | Στιβαρή ΜΕΤ (ΜΕΤ με Στιβαρά Τυπικά Σφάλματα)× | |
|---|---|---|
| Πεδίο | Οικονομετρία | Οικονομετρία |
| Οικογένεια | Regression model | Regression model |
| Έτος προέλευσης≠ | 2019 | 1980 |
| Δημιουργός≠ | Wooldridge (textbook treatment); classical least squares | Halbert White |
| Τύπος≠ | Linear regression | Linear regression with robust inference |
| Θεμελιώδης πηγή≠ | Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860 | White, H. (1980). A heteroskedasticity-consistent covariance matrix estimator and a direct test for heteroskedasticity. Econometrica, 48(4), 817–838. DOI ↗ |
| Εναλλακτικές ονομασίες | ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu | HC robust regression, White robust OLS, sandwich estimator OLS, OLS with robust standard errors |
| Συναφείς≠ | 5 | 6 |
| Σύνοψη≠ | 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). | 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. |
| ScholarGateΣύνολο δεδομένων ↗ |
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