• Question 3 Now re-estimate this regression adding the schooling variable, ie. estimate: ln(Y =L)2000 = o + 1 ln(s) + 2 ln(n + g + ) + 3 ln(school) + ": (a) Does the sign and the magnitude of the coecient on the school variable make sense? (b) How does including the school variable alter the coecients 1 and 2? (c) Interpret your ndings. Are your results here consistent with MRW