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arXiv 2402.11652econ.EMcs.LGstat.MEstat.ML
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因果潜因子模型中的双稳健推断

Doubly Robust Inference in Causal Latent Factor Models

Columbia University(哥伦比亚大学);Cornell Tech(康奈尔科技学院)

Alberto Abadie, Anish Agarwal, Raaz Dwivedi, Abhin Shah

AI总结:

针对数据丰富场景下未观测混杂的平均处理效应估计问题,提出结合结果插补、逆概率加权与新型矩阵补全交叉拟合的双稳健估计量,证明其参数速率收敛的统计性质并通过仿真验证有效性。

摘要:

本文在单元数量和结果数量均庞大的现代数据丰富环境下,针对存在未观测混杂因素的场景,提出了一种新的平均处理效应估计量。该估计量具备双稳健性,结合了结果插补、逆概率加权,以及一种用于矩阵补全的新型交叉拟合流程。我们推导了其有限样本和渐近性质保证,证明该估计量的误差会以参数速率收敛于零均值高斯分布。仿真结果验证了本文所分析估计量的理论性质的实际价值。

英文摘要:

This article introduces a new estimator of average treatment effects under unobserved confounding in modern data-rich environments featuring large numbers of units and outcomes. The proposed estimator is doubly robust, combining outcome imputation, inverse probability weighting, and a novel cross-fitting procedure for matrix completion. We derive finite-sample and asymptotic guarantees, and show that the error of the new estimator converges to a mean-zero Gaussian distribution at a parametric rate. Simulation results demonstrate the relevance of the formal properties of the estimators analyzed in this article.

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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