Difference-in-differences analysis of linked administrative data estimates effects of a Minnesota policy change that increased the payments to adoptive parents and kin guardians for children ages 6 and older, making them equal to what foster care payments were, but didn't for younger children....

Generous maternity leave, affordable daycare, extensive social safety nets, excellent universal health care, and high-quality public schools, are all notable features of Nordic countries. There is a widespread belief that such strong public investments in children contribute to a levelled...