Author Question: Ascertaining whether or not a regressor is strictly exogenous or exogenous ultimately requires all ... (Read 186 times)

SO00 · **on:** Jun 29, 2018

Ascertaining whether or not a regressor is strictly exogenous or exogenous ultimately requires all of the following with the exception of

A) economic theory.
B) institutional knowledge.
C) expert judgment.
D) use of HAC standard errors.

Question 2

Heteroskedasticity- and autocorrelation-consistent standard errors

A) result in the OLS estimator being BLUE.
B) should be used when errors are autocorrelated.
C) are calculated when using the Cochrane-Orcutt iterative procedure.
D) have the same formula as the heteroskedasticity robust standard errors in cross-sections.