3 papers
stat.ME2020
The Impact of Unmeasured Within- and Between-Cluster Confounding on the Bias of Effect Estimators from Fixed Effect, Mixed effect and Instrumental Variable Models
Yun Li, Yoonseok Lee, Friedrich K Port +1
Instrumental variable methods are popular choices in combating unmeasured confounding to obtain less biased effect estimates. However, we demonstrate that alternative methods may g…
econ.EM2019
Threshold Regression with Nonparametric Sample Splitting
Yoonseok Lee, Yulong Wang
This paper develops a threshold regression model where an unknown relationship between two variables nonparametrically determines the threshold. We allow the observations to be cro…
cond-mat.other2016
Grand Challenges in Quantum Fluids and Solids
Yoonseok Lee, William P. Halperin
We present a short review of the current and recent development in the field of superfluid 3He and 4He. The review is based on the topics discussed at the NSF sponsoredWorkshop on…