Research Staff
Sokbae (Simon) Lee
Columbia University and IFS
Selected Publications
Economic theory often provides shape restrictions on functions of interest in applications, such as monotonicity, convexity, […]
In this paper, we consider a high-dimensional quantile regression model where the sparsity structure may differ […]
In a randomized control trial, the precision of an average treatment effect estimator and the power […]
Previous version
Economic theory often provides shape restrictions on functions of interest in applications, such as monotonicity, convexity, […]
Previous version
In a randomized control trial, the precision of an average treatment e ffect estimator can be […]
Latest version
We consider a high dimensional regression model with a possible change point due to a covariate […]
In this paper, we propose a doubly robust method to present the heterogeneity of the average […]
Multivalued treatment models have only been studied so far under restrictive assumptions: ordered choice, or more […]
Latest version
We develop a general class of nonparametric tests for treatment effects conditional on covariates. We consider […]
Previous version
Economic theory often provides shape restrictions on functions of interest in applications, such as monotonicity, convexity, […]