Publications

1. A Simple Nonparametric Approach for Estimation and Inference of Conditional Quantile Functions
   Econometric Theory, Vol. 39(2), 2023, 290–320 (with Qi Li and Xueqing Yan).
2. Inference for Large-Scale Linear Systems with Known Coefficients [Working paper, R package]
   Econometrica, Vol. 91(1), 2023, 299–327 (with Andres Santos, Azeem M. Shaikh, and Alexander Torgovitsky).
3. A Projection Framework for Testing Shape Restrictions That Form Convex Cones [Supplement, Working paper, Code]
   Econometrica, Vol. 89(5), 2021, 2439–2458 (with Juwon Seo).
4. Refinements of the Kiefer-Wolfowitz Theorem and a Test of Concavity [Working paper]
   Electronic Journal of Statistics, Vol. 13(2), 2019, 4596–4645.
5. Improved Inference on the Rank of a Matrix [Working paper, Stata package]
   Quantitative Economics, Vol. 10(4), 2019, 1787–1824 (with Qihui Chen).
6. Inference on Functionals under First Order Degeneracy [Working paper]
   Journal of Econometrics, Vol. 210(2), 2019, 459–481 (with Qihui Chen).
7. Inference on Directionally Differentiable Functions [Working paper]
   Review of Economic Studies, Vol. 86(1), 2019, 377–412 (with Andres Santos).
8. Weak Convergence of the Least Concave Majorant of Estimators for a Concave Distribution Function
   Electronic Journal of Statistics, Vol. 11(2), 2017, 3841–3870 (with Brendan K. Beare).