Hidden segregation? The limits of geographically based affirmative action

Recent legal and political decisions in the US have sharply limited the use of racial affirmative action, particularly in university admissions. In response, a number of states have turned to geographic diversity as a proxy for racial diversity. Under such plans, top ranking students in each high school are guaranteed admission to elite state universities. Using a formal model, a comprehensive data set on Texas high school students, and admissions figures from Texas A&M University, the article demonstrates that under such plans, racial diversity at the university level is dependent on racial segregation at the high school level. Indeed, without narrowing the gap between white and minority measures of achievement, the proportion of minorities admitted to university can only be increased by raising the level of segregation. The analysis suggests two conclusions: first, that despite the effort to use geographic criteria to achieve racial diversity, there may simply be no adequate proxy for racial identity other than racial identity. Second, such plans hide the political and social activities that maintain racial segregation, and treat segregation as a natural and inevitable condition that does not violate principles of legal equality.