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In: Statistics and Probability

Experience (EXP) is positively associated with earnings (EARN), and years of schooling (S) is positively associated...

Experience (EXP) is positively associated with earnings (EARN), and years of schooling (S) is positively associated with earnings. Also, suppose that EXP and S not correlated. If a researcher estimates the regression :
log(EARNINGS) = β1 + β2EXP + u, the estimated coefficient on b2 will be?

A. unbiased

B. None of these answers are correct.

C. overestimate the effect of EXP on earnings.

D. underestimate the effect of EXP on earnings.

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