Diversified schools, in which students of various racial, ethnic, and socioeconomic characteristics are balanced, have a positive contextual effect on achievement for all groups compared to schools with homogeneous student bodies that tend to help affluent, white students and harm poor students and students of color. The authors advise school districts convicted for operating segregated schools on how to make all schools schools of choice that must compete for students who enroll in them. And it discusses ways of being fair and just in the distribution of educational resources to affluent...