Why are economic growth and reductions in child undernutrition so weakly correlated—and what can public policy do?

Child undernutrition in developing countries remains a persistent problem. It contributes importantly to child mortality and carries long-term consequences for malnourished children, including reduced cognitive development, worse economic outcomes, and lower offspring birthweight.1 In 2011, an estimated 165 million children in developing countries were stunted and 101 million children were underweight.2