2 papers
econ.EM2026
Nickell Meets Stambaugh: A Tale of Two Biases in Panel Predictive Regressions
Chengwang Liao, Ziwei Mei, Zhentao Shi
In panel predictive regressions with persistent covariates, coexistence of the Nickell bias and the Stambaugh bias imposes challenges for estimation and hypothesis testing. This pa…
econ.EM2026
A Relaxation Approach to Synthetic Control
Chengwang Liao, Zhentao Shi, Yapeng Zheng
The synthetic control method (SCM) is widely used for constructing the counterfactual of a treated unit based on data from control units in a donor pool. Allowing the donor pool co…