arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1902.07343econ.EM
收藏

考虑溢出效应的合成控制方法的估计与推断

Estimation and Inference for Synthetic Control Methods with Spillover Effects

Northeastern University(东北大学);Joint Committee on Taxation(联合税收委员会)

Jianfei Cao, Connor Dowd

AI总结:

本文提出了一种考虑溢出效应的合成控制方法,用于估计和推断直接治疗效应及溢出效应,并通过实证分析验证了其有效性。

摘要:

合成控制方法的估计和推断程序通常不考虑溢出效应的存在,这在许多应用中是合理的。本文考虑了允许溢出效应的合成控制方法的估计和推断。我们提出了估计直接治疗效应和溢出效应的估计量,并证明它们在渐近上无偏。此外,我们提出了一种推断程序,并证明其在渐近上无偏。我们的估计和推断程序适用于多个治疗单位和/或多个后治疗时期的情况,以及底层因子模型是平稳或协整的情况。我们讨论了因溢出结构误设定导致的偏差,并提出了一种检验正确规范的测试。我们应用我们的方法到一个经典的经验例子中,研究加州烟草控制计划的影响,如Abadie等人(2010)所述,并发现存在溢出效应。我们通过敏感性分析将我们的方法与纯捐赠者方法进行对比。

英文摘要:

Estimation and inference procedures for synthetic control methods often do not allow for the existence of spillover effects, which are plausible in many applications. In this paper, we consider estimation and inference for synthetic control methods, allowing for spillover effects. We propose estimators for both direct treatment effects and spillover effects and show that they are asymptotically unbiased. In addition, we propose an asymptotically valid inference procedure. Our estimation and inference procedure applies to cases with multiple treated units and/or multiple post-treatment periods, and to ones where the underlying factor model is either stationary or cointegrated. We discuss the bias from misspecified spillover structures and propose a test for correct specification. Simulation shows that our method beats existing methods when the remaining pure donor is substantially different from the treated unit. We apply our method to a classic empirical example that investigates the effect of California's tobacco control program as in Abadie, Diamond and Hainmueller (2010) and find evidence of spillovers.

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。

↑