Many low- and middle-income countries lag far behind high-income countries in educational access and student learning. Limited resources mean that policymakers must make tough choices about which investments to make to improve education. Although hundreds of education interventions have been...

The standard summary metric of education-based human capital used in macro analyses-the average number of years of schooling in a population-is based only on quantity. But ignoring schooling quality turns out to be a major omission. As recent research shows, students in different countries who...