Causal effects based on distributional distances
Causal effects based on distributional distances
复制标题
基于分布距离的因果效应
DOI:
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复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Edward H. Kennedy
中科院分区:
文献类型:
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作者:
Kwangho Kim;Jisu Kim;Edward H. Kennedy
We develop a novel framework for estimating causal effects based on the discrepancy between unobserved counterfactual distributions. In our setting a causal effect is defined in terms of the $L_1$ distance between different counterfactual outcome distributions, rather than a mean difference in outcome values. Directly comparing counterfactual outcome distributions can provide more nuanced and valuable information about causality than a simple comparison of means. We consider single- and multi-source randomized studies, as well as observational studies, and analyze error bounds and asymptotic properties of the proposed estimators. We further propose methods to construct confidence intervals for the unknown mean distribution distance. Finally, we illustrate the new methods and verify their effectiveness in empirical studies.
影响因子:
4.5
作者:
Westling, Ted;Carone, Marco
通讯作者:
Carone, Marco
影响因子:
2.7
作者:
Nie, X.;Wager, S.
通讯作者:
Wager, S.