If $X _ { t } \text { and } Y _ { t }$

question 1

Multiple Choice

If $X _ { t } \text { and } Y _ { t }$ are cointegrated, then the OLS estimator of the coefficient in the cointegrating regression is

• A) BLUE
• B) unbiased when using HAC standard errors.
• C) unbiased even in small samples.
• D) consistent.

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