A new studyfinds that in addition to improved health and lower mortality, children who were covered by past Medicaid expansions paid more taxes by age 28. The longer they were eligible for Medicaid, the higher the tax receipts. They also had lower Earned Income Tax payments and were more likely to attend college. Interestingly, the effect was higher for girls than boys. Advocates often talk of Medicaid as an “investment”, but it’s nice to have studies to back us up.