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arXiv 2103.11066stat.ME
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在不确定成本下的治疗分配

Treatment Allocation under Uncertain Costs

University of California, San Diego(加利福尼亚大学圣迭戈分校);Booth School of Business, University of Chicago(芝加哥大学布斯商学院);Didi Chuxing Technology Company(滴滴出行科技有限公司);Meta Platforms, Inc.(Meta平台公司);Graduate School of Business, Stanford University(斯坦福大学商学院)

Georgy Kalashnov, Evan Munro, Hao Sun, Shuyang Du, Stefan Wager

AI总结:

本文研究在不确定成本下如何最优分配治疗,提出基于优先级评分的阈值规则,并通过随机试验数据学习这些评分。

摘要:

我们考虑学习如何在治疗成本不确定且随预处理协变量变化的情况下最优分配治疗的问题。这种设定可能出现在医学领域,当需要优先分配稀缺资源时,不同患者使用时间不同,或在市场营销中,当需要针对折扣的成本取决于使用量时。本文证明,在预算约束下最优的治疗分配规则是基于优先级评分的阈值规则(评分越高越优先治疗),并提出若干实用方法,利用随机试验数据学习这些优先级评分。我们的正式结果利用了我们问题与在内生性下学习异质治疗效应使用工具变量的问题之间的统计联系。我们在多个实证评估中发现我们的方法表现良好。

英文摘要:

We consider the problem of learning how to optimally allocate treatments whose cost is uncertain and can vary with pre-treatment covariates. This setting may arise in medicine if we need to prioritize access to a scarce resource that different patients would use for different amounts of time, or in marketing if we want to target discounts whose cost to the company depends on how much the discounts are used. Here, we show that the optimal treatment allocation rule under budget constraints is a thresholding rule based on priority scores (those with a higher score are treated first), and we propose a number of practical methods for learning these priority scores using data from a randomized trial. Our formal results leverage a statistical connection between our problem and that of learning heterogeneous treatment effects under endogeneity using an instrumental variable. We find our method to perform well in a number of empirical evaluations.

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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