2 papers
stat.ME2026
Multi-Task Learning for High-Dimensional Regression with Many Weak Instruments
Di Zhang, Xuanyu Li, Baoluo Sun
Many weak instrumental variables (IVs) are routinely used in the health and social sciences to improve identification and inference of the treatment effect of interest, along with…
stat.ME2026
Constructive Instrumental Variable Identification and Inference with Many Weak Interaction Moments
Di Zhang, Minhao Yao, Zhonghua Liu +1
Instrumental variable methods are widely used for causal inference, but identification becomes especially challenging when instruments are weak and potentially invalid. These chall…