What might account for the concentration of college graduates in urban areas, according to Enrico Moretti? Which hypothesis does he prefer? The fact that Moretti does not rule out one of the two...

What might account for the concentration of college graduates in urban areas, according to Enrico Moretti? Which hypothesis does he prefer? The fact that Moretti does not rule out one of the two hypotheses likely means that he does not have adequate data to draw a conclusion. Do you favor one hypothesis over the other on the basis of your life experiences? Which one and why? Why might Moretti, as an economist, not be willing to trust his life experience in answering this question?