Yuan Qi

collaborators

2 papers

econ.EM2026

A Sensitivity Analysis of the Surrogate Index Approach for Estimating Long-Term Treatment Effects

Yanqin Fan, Carlos A. Manzanares, Hyeonseok Park +1

This paper develops a sensitivity analysis of the surrogacy assumption for the surrogate index approach in Athey et al. [2025b]. We introduce "Weighted Surrogate Indices (WSIs)," t…

econ.EM2025

Policy Learning with $I^\pm$ -Expected Welfare

Yanqin Fan, Yuan Qi, Gaoqian Xu

This paper proposes an optimal policy that targets the average welfare of the worst-off $I^\pm$ -fraction of the post-treatment outcome distribution. We refer to this policy as the $Î±…

A Sensitivity Analysis of the Surrogate Index Approach for Estimating Long-Term Treatment Effects

Policy Learning with I^±-Expected Welfare

Policy Learning with $I^\pm$ -Expected Welfare