Mothers as insurance: Family spillovers in WIC

The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) is a widely used program. Previous research shows that WIC improves birth outcomes, but evidence about impacts on children and families is limited. We use a regression discontinuity leveraging an age five when children become ineligible for WIC and examine nutritional and laboratory outcomes for adults and children. We find little impact on children who aged out of the program. But among adult women caloric intake falls and food insecurity increases, suggesting that mothers protect children by consuming less themselves. We find no effect on others in the household. (author abstract)