Peer Effects in Affirmative Action: Evidence from Law Student Performance
John R. Lott Jr.
Crime Prevention Research Center
J. Mark Ramseyer
Harvard Law School
Harvard Law and Economics Discussion Paper No. 581
In the Grutter case, Justice O'Connor suggested that universities could justifiably try to enroll a critical mass of minority students. Enroll fewer than that critical mass, reason some observers, and minority students will feel too marginalized to perform at their highest levels. In this article, we test whether minority students perform better with other students from their ethnic group in a class or school. To do so, we assemble data on the ethnicity and performance of each student in all classes at two law schools - for three years at one, and for sixteen years at the other. We find no consistent evidence that having additional students from one's ethnic group raises a student's performance. Instead, we find some evidence that having additional ethnic peers lowers performance - albeit by a very small amount (US, Canada).
Number of Pages in PDF File: 30
JEL Classification: I2, J7, K19
Date posted: May 8, 2007
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