A common argument leveled against charter schools is that they attract the most motivated and intelligent students from already struggling public schools. Marcus Winters seeks to examine this claim, known as "cream-skimming," by comparing the performance of New York City's (NYC) charter middle schools with a set of traditional selective…

This report details how charter schools are increasingly run by private, nonprofit management organizations called charter school management organizations (CMOs). The researchers find that most CMOs serve urban students from low-income families, operate small schools that offer more instructional time, and attract teachers loyal to each school's…