Research Staff
Sokbae (Simon) Lee
Columbia University and IFS
Selected Publications
This paper examines a commonly used measure of persuasion whose precise interpretation has been obscure in […]
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We provide novel bounds on average treatment effects (on the treated) that are valid under an […]
This paper describes three methods for carrying out non-asymptotic inference on partially identified parameters that are […]
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In this paper, we estimate the time-varying COVID-19 contact rate of a Susceptible-Infected-Recovered (SIR) model. Our […]
We investigate whether growing up in a socialist country affects the development of competitiveness by comparing […]
We consider both l0-penalized and l0-constrained quantile regression estimators. For the l0-penalized estimator, we derive an […]
We investigate state-dependent effects of fiscal multipliers and allow for endogenous sample splitting to determine whether […]
We investigate identification of causal parameters in case-control and related studies. The odds ratio in the […]
Datasets that are terabytes in size are increasingly common, but computer bottlenecks often frustrate a complete […]
We compare two groups of the non-student Korean population—native-born South Koreans (SK) and North Korean refugees […]