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arXiv 2005.12225econ.EMstat.ME
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稀疏下多协变量模型的一种综合控制方法

An alternative to synthetic control for models with many covariates under sparsity

Marianne Bléhaut, Xavier D'Haultfoeuille, Jérémy L'Hour, Alexandre B. Tsybakov

摘要:

合成控制法是一种计量经济学工具,用于评价仅处理一个单元时的因果效应。虽然最初的目的是评估大规模的宏观经济变化的影响,很少有可用的控制单元,它已越来越多地被用来代替更知名的微观计量经济学工具,在广泛的应用,但其属性在这方面是未知的。本文介绍了一种替代的合成控制法,这是在通常的渐近框架和高维的情况下开发。我们提出了一个平均处理效应的估计,它是双稳健的,一致的和渐近正态的。它也对第一步选择错误免疫。我们说明这些属性使用蒙特卡罗模拟和应用程序的标准和潜在的高维设置,并提供了比较与合成控制法。

英文摘要:

The synthetic control method is a an econometric tool to evaluate causal effects when only one unit is treated. While initially aimed at evaluating the effect of large-scale macroeconomic changes with very few available control units, it has increasingly been used in place of more well-known microeconometric tools in a broad range of applications, but its properties in this context are unknown. This paper introduces an alternative to the synthetic control method, which is developed both in the usual asymptotic framework and in the high-dimensional scenario. We propose an estimator of average treatment effect that is doubly robust, consistent and asymptotically normal. It is also immunized against first-step selection mistakes. We illustrate these properties using Monte Carlo simulations and applications to both standard and potentially high-dimensional settings, and offer a comparison with the synthetic control method.

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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