If the Errors Are Heteroskedastic, Then

question 2

Multiple Choice

If the errors are heteroskedastic, then

• A)the OLS estimator is still BLUE as long as the regressors are nonrandom.
• B)the usual formula cannot be used for the OLS estimator.
• C)your model becomes overidentified.
• D)the OLS estimator is not BLUE.

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Definitions:

Accretionary Prism

A wedge-shaped mass of sediment and rock scraped off the top of a downgoing tectonic plate at a convergent plate boundary.

Displaced Granitic Rocks

Granitic rocks that have been moved from their original position by geological forces, often resulting in altered landscapes.

Continents

Large landmasses on Earth's surface, distinguished by convention rather than any strict criteria, typically identified by geographical and cultural factors.

Continental Shield

Large geographical areas composed of ancient, stable, and relatively flat Precambrian rock that form the cores of continents.