Sorry for my absence. This is mainly a link to this post by Emily Badger at the still excellent wonkblog.
just a quote
a 10 percentage point increase in Medicaid eligibility among children in a state translated into a 5.2 percent decline in high school dropouts (among all students), a 1.1 percent increase in college attendance, and a 3.2 percent increase in students completing bachelor’s degrees.
It is yet another addition to the new evidence that safety net programs have beneficial side effects in addition to their direct benefits.