4 papers
Uniform Inference on Quantile Effects under Network Interference
Zequn Jin, Gaoqian Xu, Zixin Yang +1
This paper studies quantile treatment and spillover effects in network experiments. Average spillover effects reveal how treating a unit's neighbors affects its outcome on average,…
Policy Learning under Unobserved Confounding: A Robust and Efficient Approach
Zequn Jin, Gaoqian Xu, Xi Zheng +1
This paper develops a robust and efficient method for policy learning from observational data in the presence of unobserved confounding, complementing existing instrumental variabl…
Policy Learning with -Expected Welfare
Yanqin Fan, Yuan Qi, Gaoqian Xu
This paper proposes an optimal policy that targets the average welfare of the worst-off -fraction of the post-treatment outcome distribution. We refer to this policy as the -…
Quantifying Distributional Model Risk in Marginal Problems via Optimal Transport
Yanqin Fan, Hyeonseok Park, Gaoqian Xu
This paper studies distributional model risk in marginal problems, where each marginal measure is assumed to lie in a Wasserstein ball centered at a fixed reference measure with a…