1 code implementation • 12 Oct 2023 • Qingliang Fan, Zijian Guo, Ziwei Mei, Cun-Hui Zhang
In this paper, we propose new estimation and inference procedures for nonparametric treatment effect functions with endogeneity and potentially high-dimensional covariates.
1 code implementation • 27 Feb 2023 • Ziwei Mei, Liugang Sheng, Zhentao Shi
Local Projection is widely used for impulse response estimation, with the Fixed Effect (FE) estimator being the default for panel data.
no code implementations • 14 Dec 2022 • Ziwei Mei, Zhentao Shi
This paper examines LASSO, a widely-used $L_{1}$-penalized regression method, in high dimensional linear predictive regressions, particularly when the number of potential predictors exceeds the sample size and numerous unit root regressors are present.
no code implementations • 20 Sep 2022 • Ziwei Mei, Peter C. B. Phillips, Zhentao Shi
The global financial crisis and Covid recession have renewed discussion concerning trend-cycle discovery in macroeconomic data, and boosting has recently upgraded the popular HP filter to a modern machine learning device suited to data-rich and rapid computational environments.
1 code implementation • 30 Apr 2022 • Qingliang Fan, Zijian Guo, Ziwei Mei
The theoretical power based on the maximum norm is shown to be higher than that in the modified Cragg-Donald test (Koles\'{a}r, 2018), which is the only existing test allowing for large-dimensional covariates.