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econ.EM2026
The Proximal Surrogate Index: Long-Term Treatment Effects under Unobserved Confounding
Ting-Chih Hung, Yu-Chang Chen
We study the identification and estimation of long-term treatment effects under unobserved confounding by combining an experimental sample, where the long-term outcome is missing,…
econ.EM2022
Personalized Subsidy Rules
Yu-Chang Chen, Haitian Xie
Subsidies are commonly used to encourage behaviors that can lead to short- or long-term benefits. Typical examples include subsidized job training programs and provisions of preven…
econ.EM2020★ 2 cited
Global Representation of the Conditional LATE Model: A Separability Result
Yu-Chang Chen, Haitian Xie
This paper studies the latent index representation of the conditional LATE model, making explicit the role of covariates in treatment selection. We find that if the directions of t…