Homi Kharas

Education is a sector where there is almost universal consensus that it is the key linchpin for achievement of almost all of the other goals, whether you’re talking about peace, or jobs, or even health, or poverty, or livable cities, or environmental awareness...[Yet, it remains] one of the least well-funded sectors.

From 2015 to 2030 middle-class consumption worldwide could grow by $29 trillion. Only $1 trillion of that added spending, will come from the advanced economies. The rest will come from, well, "the rest."