A Simple Method for School Choice Lotteries
arXiv:2605.067215.6
Predicted impact top 49% in GT · last 90 daysOriginality Synthesis-oriented
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It provides a practical solution for improving fairness in school choice lotteries, though the problem is narrow and the method is incremental.
This paper proposes a polynomial-time method for constructing an ex ante stable school-choice lottery that satisfies equal treatment of equals, yielding a lottery not ordinally dominated by any other ex ante stable lottery.
This note proposes a simple polynomial-time method for constructing an ex ante stable school-choice lottery satisfying equal treatment of equals. The method applies the ETE reassignment to a constrained efficient stable matching and yields a lottery that is not ordinally dominated by any other ex ante stable lottery.