3. (10 Points) School Construction a) (5 Points) Describe briefly the studies of the effects on children's adult earnings of school construction in Indonesia and Rosenwald school construction in the Southern U.S.. What are the key assump- tions for these studies to provide unbiased estimates of the effects of schools on adult earnings? Are those assumptions likely to be met in these two studies? NOTE: Answers graded entirely on your justification. b) (5 Points) In the United States, school spending (a proxy for quality) is a function of the school district in which parents choose to locate and the taxes that parents choose to impose on themselves (and their neighbors). Suppose a researcher were to relate children's adult earnings to spending on schools that they attended while growing up. To what extent are results of such a study likely to differ from the studies of school construction in Part a? Be specific and explain clearly