When the Errors Are Heteroskedastic, Then

question 7

Multiple Choice

When the errors are heteroskedastic, then

• A)WLS is efficient in large samples, if the functional form of the heteroskedasticity is known.
• B)OLS is biased.
• C)OLS is still efficient as along as there is no serial correlation in the error terms.
• D)weighted least squares is efficient.

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