If X_it Is Correlated with X_is for Different Values of S

question 32

Multiple Choice

If X_it is correlated with X_is for different values of s and t, then

• A)X_it is said to be autocorrelated
• B)the OLS estimator cannot be computed
• C)statistical inference cannot proceed in a standard way even if clustered standard errors are used
• D)this is not of practical importance since these correlations are typically weak in applications

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