American school systems have implemented several different kinds of school choice policies, and most of them are controversial. The research literature on various forms of school choice reveals some areas of consensus, but other areas where the results of studies diverge. Consensus results show...

Skeptics of school choice are concerned that parents, especially low-income ones, will not choose schools based on sound academic reasoning. Many fear that, given choice, parents will sort themselves into different schools along class lines. How-ever, most surveys find that parents of all...