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econ.EM2026
Fixed-smoothing Uniform Inference for Quantile Regression
Kaicheng Chen, Antonio F. Galvao, Seunghwa Rho +2
This paper develops fixed-smoothing (fixed-b, fixed-K) inference methods for time-series quantile regression that are robust to heteroskedasticity and autocorrelation. Our approach…
econ.EM2026
Cross-Fitting-Free Debiased Machine Learning with Multiway Dependence
Kaicheng Chen, Harold D. Chiang
This paper develops an asymptotic theory for two-step debiased machine learning (DML) estimators in generalised method of moments (GMM) models with general multiway clustered depen…