Divided enrollment systems cause school assignments to be unfair and wasteful. Iterative version of the student-optimal stable mechanism (I-SOSM), proposed by Manjunath and Turhan (2016), achieves individually rational and fair assignments in such partitioned school choice markets for any number...

Recent evidence, from both academia and practice, indicates that implementing affirmative action policies in school choice problems may induce substantial welfare losses on the intended beneficiaries. This paper addresses the following two questions: what are the causes of such perverse...