the problem may be less the quantity of food than its quality, and in particular the shortage of micronutrients. The benefits of good nutrition may be particularly strong for two sets of people who do not decide what they eat: unborn babies and young children. In fact, there may well be an S-shaped relationship between their parent’s income and the eventual income of these children, caused by childhood nutrition. That is because a child who got the proper nutrients in utero or during early childhood will earn more money every year of his or her life: This adds up to large benefits over a
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