BUAN 6312 EXAM 2 EXAM (ACTUAL EXAM)
WITH QUESTIONS WITH VERY
ELABORATED ANSWERS CORRECTRY WELL
ORGANIZED LATEST 2024 – 2025 ALREADY
GRADED A+
Which model allows for the controlling of some types of omitted variables
without actually observing them? - ANSWERS-fixed effects
Which model does not have a coefficient that varies with i? - ANSWERS-Pooled
OLS
Which model uses variation within individuals? - ANSWERS-fixed effects
Instrumental variables cannot be correlated with ___ but must be correlated
with___ - ANSWERS-e,x
, Instrumental variables are biased but what? - ANSWERS-Consistent
Why are instrumental variable estimators less efficient than LSE? - ANSWERS-
Variance of IV estimator is always larger than LSE
Instrumental variables need an F-stat of at least what? - ANSWERS-10
The number of what should be greater than or equal to the number of
endogenous variables? - ANSWERS-exogenous instruments
Endogeniety - ANSWERS-Correlation between explanatory variable and error term
Endogeniety causes the least squares estimator to be what? - ANSWERS-Biased
and inconsistent
When what is correlated with the explanatory variable, the regression error will
be correlated with the explanatory variable? - ANSWERS-Omitted variable
Instrumental variables have no effect on what? - ANSWERS-Y
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