A recent study demonstrated that common-sense notion that being richer makes it easier to be smarter, or at least perceived that way. They studies guaranteed incomes for two groups of people: one received $20/month, the other received $333/month.
“the infants whose families received $333/month had more high-frequency brain activity” – Ms.
If educational progress translates into a better standard of living, and if a better standard of living requires less government support while also enabling more tax income, then funding childhood development through something as open-ended as a guaranteed stipend may have significant return on investments for the country. It appears that helping children for a few years can have benefits that payback for decades. Those studies, however, could take too long to receive near-term benefits.