“…Importantly, we have not considered here the impact of release from court order (and the resulting increase in school segregation) on educational outcomes such as academic achievement and graduation. A growing body of evidence indicates that the desegregation that took place in the 1960s and 1970s improved black students' educational attainment, but had little or no effect on white students' attainment (Ashenfelter, Collins, and Yoon, 2005;Card and Krueger, 1992;Guryan, 2004;Johnson, 2011;Reber, 2010). Prior research finds that the desegregation plans of the 1960s and 1970s were associated with declines in the black-white dissimilarity index of around 0.20 and increases in the black-white exposure index of about 0.15 (Guryan, 2004;Johnson, 2011;Reber, 2005), and that blacks' high school dropout rates declined between 3 and 6 percent during that time (Guryan, 2004;Johnson, 2011).…”