Research

Selecting Inequalities for Sharp Identification in Models with Set-Valued Predictions (with Ye Luo and Hai Wang), Accepted at The Review of Economic Studies [paper]
Adaptive Welfare Maximization (with Liqiang Shi), Japanese Economic Review (Special Issue on Recent Advances in Econometrics, Volume 77 Issue 2) [paper]

Testing Exclusion and Shape Restrictions in Potential Outcomes Models (with Hiroaki Kaido), Revise and Resubmit at Econometrica [paper]
On the Lower Confidence Band for the Optimal Welfare in Policy Learning (with Vira Semenova), Revise and Resubmit at Quantitative Economics [paper]
Identification and Optimal Reserve Prices in English Auctions, with an Application to Art (with Bruce Wen) [paper]
Inference for Linear Systems with Unknown Coefficients (with Yuehao Bai, Max Tabord-Meehan, Andres Santos, Azeem Shaikh, and Alexander Torgovitsky) [paper]

Simple Bounds on Counterfactuals in Potential Outcome Models (with Hiroaki Kaido)
Improving IV Estimates When the Sign of Endogeneity Bias is Known [slides]
Efficient Estimation of Intersection Bounds (with Bulat Gafarov)
Peer Effects in Endogenous Networks with Positive Spillovers