no code implementations • 13 Jun 2023 • Shunsuke Imai, Yuta Okamoto
The local polynomial density (LPD) estimator has been a useful tool for inference concerning boundary points of density functions.
no code implementations • 3 May 2023 • Shunsuke Imai, Lei Qin, Takahide Yanagi
We consider a panel data analysis to examine the heterogeneity in treatment effects with respect to a pre-treatment covariate of interest in the staggered difference-in-differences setting of Callaway and Sant'Anna (2021).