Multiple Choice
Ordinary least squares estimation is subject to heterogeneity bias if _____.
A) the regression model exhibits heteroskedasticty
B) the unobserved effect is correlated with the observed explanatory variables
C) the regression model includes a lagged dependent variable
D) the explanatory variables do not change over time
Correct Answer:
Verified
Correct Answer:
Verified
Q1: A natural experiment always has a control
Q3: If each variable in a single cross-sectional
Q4: A natural experiment occurs when an endogenous
Q5: Which of the following assumptions is needed
Q6: Which of the following assumptions is required
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