We estimate school-choice preferences revealed by the rank-ordered lists submitted by more than 22,000 applicants to a citywide lottery for more than 200 traditional and charter public schools in Washington, D.C. The results confirm previously reported findings that commuting distance, school demographics, and academic indicators play important roles in school choice and that there is considerable heterogeneity of preferences. Higher and lower income choosers respond to academic quality measures, but respond to different indicators of quality. Simulations suggest segregation by race and income would be reduced and enrollment in high-performing schools increased if policymakers were to relax school capacity constraints in individual campuses. The simulations also suggest that removing the lowest performing schools as choice options could further reduce segregation and increase enrollment in high-performing schools.

The 2007 Public Education Reform Amendment Act led to 39 percent of the principals in District of Columbia Public Schools (DCPS) being dismissed before the start of the 2008–09 school year, and additional principal exits over the next few years. We measure the impact of replacing these principals on schoolwide student achievement by measuring the changes in achievement that occurred when principals were replaced, and comparing these changes to achievement in comparison schools within DCPS that kept the same principal. We find that after a new principal's third year in a school, average schoolwide achievement increased by 4 percentile points (0.09 standard deviations) compared with how students in the school would have achieved had DCPS not replaced the previous principal. For students in grades 6 to 8, the gains were larger and statistically significant in both math and reading.

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