2 papers
stat.ME2025
Variance Estimation for Weighted Average Treatment Effects
Huiyue Li, Yi Liu, Yunji Zhou +3
Common variance estimation methods for weighted average treatment effects (WATEs) in observational studies include nonparametric bootstrap and model-based, closed-form sandwich var…
stat.ME2024
Average treatment effect on the treated, under lack of positivity
Yi Liu, Huiyue Li, Yunji Zhou +1
The use of propensity score (PS) methods has become ubiquitous in causal inference. At the heart of these methods is the positivity assumption. Violation of the positivity assumpti…