I usually take the G7 as the benchmark—what oil emirates like Norway or banking havens like Switzerland spend aren’t a relevant comparison to a big diversified economy like the US. We spend a bigger percentage of our economy on K-12 than all but one other G7 country. And since our GDP per capita is so high, that share of GDP represents 20%+ more purchasing power than other G7 countries. That should be more than enough. We need to stop acting like money is the problem in education.
Isn't money spent on education mostly teachers' salaries? So high GDP per capita just makes education more expensive, not less expensive. If education spending was mostly electronics, then higher GDP per capita would have been good for education.