Semiparametric Estimation for Causal Mediation Analysis with Multiple Causally Ordered Mediators
多个因果有序中介变量下的因果中介分析半参数估计
Abstract Causal mediation analysis concerns the pathways through which a treatment affects an outcome. While most of the mediation literature focuses on settings with a single mediator, a flourishing line of research has examined settings involving multiple mediators, under which path-specific effects (PSEs) are often of interest. We consider estimation of PSEs when the treatment effect operates through K(≥ 1) causally ordered, possibly multivariate mediators. In this…