A Heteroskedasticity-Consistent Covarian
A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity
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Halbert White
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Article
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1980
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John Wiley and Sons
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English
โ 450 KB
## BY HALBERT WHITE1 This paper presents a parameter covariance matrix estimator which is consistent even when the disturbances of a linear regression model are heteroskedastic. This estimator does not depend on a formal model of the structure of the heteroskedasticity. By comparing the elements of