That’s the conclusion of a growing number of researchers who argue that 30 years of test scores have not measured a decline in public schools, but are rather a metric of the country’s child poverty and the broadening divide of income inequality.
Teachers receive salary and pension benefits later in their careers, which works to the advantage of many, including the unions that lead them, but this rewards structure could be keeping lots of talented individuals out of the classrooms.
Growing inequality in America has been matched by a surge in security guards—for gated communities, upscale residential buildings, and more. That trend—more inequality, more guards—is matched across industrialized countries.