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| Bielov test heteroskedasticity× | Regresia metódou najmenších štvorcov (OLS)× | |
|---|---|---|
| Odbor | Ekonometria | Ekonometria |
| Rodina | Regression model | Regression model |
| Rok vzniku≠ | 1980 | 2019 |
| Tvorca≠ | Halbert White | Wooldridge (textbook treatment); classical least squares |
| Typ≠ | General test for heteroskedasticity | Linear regression |
| Pôvodný zdroj≠ | White, H. (1980). A heteroskedasticity-consistent covariance matrix estimator and a direct test for heteroskedasticity. Econometrica, 48(4), 817–838. DOI ↗ | Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860 |
| Ďalšie názvy≠ | White's general heteroskedasticity test, White değişen varyans testi | ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu |
| Príbuzné≠ | 3 | 5 |
| Zhrnutie≠ | The White test, introduced by Halbert White in 1980, is a general test for heteroskedasticity that makes no assumption about its functional form. It regresses the squared OLS residuals on the regressors, their squares, and their cross-products, so it can detect heteroskedasticity related to any of these terms. The same 1980 paper introduced the heteroskedasticity-consistent ('White') standard errors that are the standard remedy when the test rejects. | 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). |
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