3 papers
econ.EM2026
Uniform Confidence Bands for Infinite-Dimensional Partially Identified Parameters
Shunsuke Imai, Yuta Okamoto
Infinite-dimensional parameters are ubiquitous in empirical economics. This paper develops an Imbens--Manski--Stoye type confidence band for infinite-dimensional partially identifi…
econ.EM2026
Kernel Choice Matters for Local Polynomial Density Estimators at Boundaries
Shunsuke Imai, Yuta Okamoto
Local polynomial density (LPD) estimators are widely used for inference on boundary features of the density function. Contrary to conventional wisdom, we show that kernel choice su…
econ.EM2025
Doubly Robust Uniform Confidence Bands for Group-Time Conditional Average Treatment Effects in Difference-in-Differences
Shunsuke Imai, Lei Qin, Takahide Yanagi
We consider a panel data analysis to examine the heterogeneity in treatment effects with respect to groups, periods, and a pre-treatment covariate of interest in the staggered diff…