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A Simple Method for School Choice Lotteries

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  • Yasunori Okumura

Abstract

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.

Suggested Citation

  • Yasunori Okumura, 2026. "A Simple Method for School Choice Lotteries," Papers 2605.06721, arXiv.org.
    • Handle: RePEc:arx:papers:2605.06721
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    File URL: http://arxiv.org/pdf/2605.06721
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