Sharp Variance Estimator and Causal Bootstrap in Stratified Randomized Experiments
Haoyang Yu, Ke Zhu, and Hanzhong Liu. Statistics in Medicine, 44: e70139.
Research
My work focuses on design-based causal inference.
Publications
Working papers
Minimax Optimal Design with Spillover and Carryover Effects
Haoyang Yu, Wei Ma, and Hanzhong Liu. arXiv: 2501.14602.
Design-Based Edge-Level Causal Inference with Machine Learning Assisted Covariate Adjustment
Haoyang Yu, Yilin Li, Lu Deng, Yong Wang, Xin Lu, and Hanzhong Liu. arXiv: 2606.00965.
Design-Based Theory for Causal Inference (in Chinese)
Xin Lu, Wanjia Fu, Hongzi Li, Haoyang Yu, Honghao Zhang, Ke Zhu, and Hanzhong Liu. arXiv: 2511.22518.