Economics · Econometrics
In a regression model with first-order autocorrelation in errors: 1. OLS estimators remain unbiased under exogeneity. 2. OLS estimators are inefficient. 3. Usual standard errors are biased. 4. GLS can provide more efficient estimates. Choose the correct option:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11, 2 and 3 only
- 22 and 3 only
- 31, 2, 3 and 4✓
- 41 and 4 only
Correct answer
1, 2, 3 and 4
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