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stat.ME2023
On Doubly Robust Estimation with Nonignorable Missing Data Using Instrumental Variables
Baoluo Sun, Wang Miao, Deshanee S. Wickramarachchi
Suppose we are interested in the mean of an outcome that is subject to nonignorable nonresponse. This paper develops new semiparametric estimation methods with instrumental variabl…
stat.ME2023
Testing High-Dimensional Mediation Effect with Arbitrary Exposure-Mediator Coefficients
Yinan Lin, Zijian Guo, Baoluo Sun +1
In response to the unique challenge created by high-dimensional mediators in mediation analysis, this paper presents a novel procedure for testing the nullity of the mediation effe…