Question: D Question 8 3 pts The random effects estimator O is less convincing than fixed effects for policy analysis O cannot be used when some

D Question 8 3 pts The random effects estimator O is less convincing than fixed effects for policy analysis O cannot be used when some of the explanatory variables are constant over time requires that the idiosyncratic errors are serially correlated O assumes the unobserved effect is correlated with each explanatory variable
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