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. ↩ . d. almond, b. mazumder, and r. van ewijk, "fasting during pregnancy and children's academic performance," nber working paper no. , december . ↩ . j. ferrie and k. rolf, "socioeconomic status in childhood and health after age : a new longitudinal analysis for the u.s., ," nber working paper no.
vouchers and public housing," nber working paper no. , october . ↩ . g.b. dahl, a.r. kostol and m. mogstad, "family welfare cultures," nber working paper no. , july , and the quarterly journal of economics, oxford university press, ( ), , pp. - . ↩ . j. ludwig, g.j. duncan, l.a. gennetian, l.f. katz...
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