Luther Yap

Welcome

I’m currently a Presidential Fellow at the Department of Economics in the National University of Singapore (NUS) and will be an Assistant Professor at NUS from July 2027. My research interest is broadly in Econometrics and Applied Microeconomics.

Working Papers

Sensitivity Analysis for Linear Estimators (with Jacob Dorn) (November 2025) Latest Draft arXiv

Clustering with Potential Multidimensionality: Inference and Practice (with Ruonan Xu) (October 2025) Latest Draft arxiv

Build to Order: Endogenous Supply in Centralized Mechanisms (with Andrew Ferdowsian and Kwok-Hao Lee) (June 2025) Latest Draft

Two-Stage Differences in Differences (with John Gardner, Neil Thakral, and Linh To) (April 2025) Latest Draft

Inference with Many Weak Instruments and Heterogeneity (April 2025) Latest Draft Implementation Code arXiv

The Dynamic Allocation of Public Housing: Policy and Spillovers (with Andrew Ferdowsian and Kwok-Hao Lee) (January 2024) Latest Draft

What to do when you can’t use ‘1.96’ Confidence Intervals for IV (with David S. Lee, Justin McCrary, Marcelo J. Moreira, and Jack R. Porter) (November 2023) NBER Draft Supplement

Robust Conditional Wald Inference for Over-Identified IV (with David S. Lee, Justin McCrary, Marcelo J. Moreira, and Jack R. Porter) (November 2023) Draft

Publications

Asymptotic Theory for Two-Way Clustering (May 2025) Published Version Latest Draft arXiv Journal of Econometrics, 249, 106001.

Sensitivity Analysis of Policy Relevant Treatment Parameters to Violations of Monotonicity (May 2025) Published Version Latest Draft First Version Journal of Applied Econometrics.