We examine multi-generational impacts of positive in utero and early life health interventions. We focus on the 1980s Medicaid expansions, which targeted low-income pregnant women, and were adopted differently across states and over time. We use Vital Statistics Natality files to create unique data linking individuals' in utero Medicaid exposure to the next generation's health outcomes at birth. We find strong evidence that the health benefits associated with treated generations' in utero access to Medicaid extend to later offspring in the form of higher average birth weight and decreased incidence of very low birth weight. Later childhood exposure to Medicaid does not lead to persistent health effects across generations. The return on investment is substantially larger than suggested by evaluations of the program that focus only on treated cohorts.
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