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arXiv 2005.08584cs.GTcs.DMcs.DSecon.TH
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双边随机匹配市场:延期接受程序的事前等价性

Two-Sided Random Matching Markets: Ex-Ante Equivalence of the Deferred Acceptance Procedures

Simon Mauras

摘要:

在由$N$男性和$N$女性组成的社区中的稳定匹配是一个经典的组合问题,自1962年Gale和Shapley在一篇开创性的论文中引入以来,一直是激烈的理论和实证研究的主题。当输入偏好分布是从一个分布中产生时,我们研究了两个稳定匹配过程的输出分布:女性求婚延迟接受和男性求婚延迟接受。我们证明了这两个过程是事前等价的:也就是说,在一定的条件下的输入分布,它们的输出分布是相同的。在技术方面的贡献,我们推广(非均匀的情况下)的积分公式,由于克努特和皮特尔,它给出了固定匹配是稳定的概率。利用旋转集上的容斥原理,给出了一个新的公式,它给出了一个固定匹配是女性/男性最佳稳定匹配的概率。我们证明,这两个概率是相等的积分替代。

英文摘要:

Stable matching in a community consisting of $N$ men and $N$ women is a classical combinatorial problem that has been the subject of intense theoretical and empirical study since its introduction in 1962 in a seminal paper by Gale and Shapley. When the input preference profile is generated from a distribution, we study the output distribution of two stable matching procedures: women-proposing-deferred-acceptance and men-proposing-deferred-acceptance. We show that the two procedures are ex-ante equivalent: that is, under certain conditions on the input distribution, their output distributions are identical. In terms of technical contributions, we generalize (to the non-uniform case) an integral formula, due to Knuth and Pittel, which gives the probability that a fixed matching is stable. Using an inclusion-exclusion principle on the set of rotations, we give a new formula which gives the probability that a fixed matching is the women/men-optimal stable matching. We show that those two probabilities are equal with an integration by substitution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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