Few people dispute that pouring public education is good for economic growth.
Well, you just met one. It has always been my contention that case-and-effect are reversed, sic.: poor countries must grow richer so they afford to educate their people.
For countries that boosted average years of education by increasing spending between 1960’s & 1990’s, there was little if any correlation with improved economic performance.
What might be going on here challenges the notion that the provision of education must be controlled by government. Due to incentive problems, it is not surprising that public-sector provision & control of education tends to fail.
In all events, more important than making substantial investments in human capital is to open the economy so that specialization & division of labor can boost productivity.
Certainly, education matters for individuals. But if it allows individuals to improve their conditions, this weakens the argument for taxpayer funds to be used to support education.