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 1808.05293econ.EMcs.LGmath.STstat.TH
收藏

交错实施的双重差分法环境中基于设计的分析

Design-based Analysis in Difference-In-Differences Settings with Staggered Adoption

Stanford University(斯坦福大学)

Susan Athey, Guido Imbens

摘要:

本文研究了面板数据下平均处理效应的估计和推断。我们专注于单位的设置,例如,个人、公司或国家在某一特定时间点采取有关利益的政策或待遇,然后在此后的任何时候都暴露于这种待遇之下。我们采取设计的角度来看,我们调查的属性估计和程序的假设分配过程。我们证明了在随机分配的采用日期的标准双重差分法估计是一个无偏估计的一个特定的加权平均因果效应。我们刻画了这个估计量的性质,并证明了标准方差估计量是保守的。

英文摘要:

In this paper we study estimation of and inference for average treatment effects in a setting with panel data. We focus on the setting where units, e.g., individuals, firms, or states, adopt the policy or treatment of interest at a particular point in time, and then remain exposed to this treatment at all times afterwards. We take a design perspective where we investigate the properties of estimators and procedures given assumptions on the assignment process. We show that under random assignment of the adoption date the standard Difference-In-Differences estimator is is an unbiased estimator of a particular weighted average causal effect. We characterize the proeperties of this estimand, and show that the standard variance estimator is conservative.

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。

↑