5 papers · 1 filter
Estimating Treatment Effects Under Bounded Heterogeneity
Soonwoo Kwon, Liyang Sun
Specifications that impose constant treatment effects are common and can be biased under heterogeneity, whereas fully flexible alternatives can be imprecise or infeasible. Under a…
Extrapolation in Regression Discontinuity Design Using Comonotonicity
Ben Deaner, Soonwoo Kwon
We present a novel approach for extrapolating causal effects away from the margin between treatment and non-treatment in sharp regression discontinuity designs with multiple covari…
Empirical Bayes shrinkage (mostly) does not correct the measurement error in regression
Jiafeng Chen, Jiaying Gu, Soonwoo Kwon
In the value-added literature, it is often claimed that regressing on empirical Bayes shrinkage estimates corrects for the measurement error problem in linear regression. We clarif…
(Empirical) Bayes Approaches to Parallel Trends
Soonwoo Kwon, Jonathan Roth
We consider Bayes and Empirical Bayes (EB) approaches for dealing with violations of parallel trends. In the Bayes approach, the researcher specifies a prior over both the pre-trea…
Testing Mechanisms
Soonwoo Kwon, Jonathan Roth
Economists are often interested in the mechanisms by which a treatment affects an outcome. We develop tests for the "sharp null of full mediation" that a treatment affects an o…