Search Results for author: Zhentao Shi

Found 11 papers, 6 papers with code

Economic Forecasts Using Many Noises

no code implementations9 Dec 2023 Yuan Liao, Xinjie Ma, Andreas Neuhierl, Zhentao Shi

This paper addresses a key question in economic forecasting: does pure noise truly lack predictive power?

Dimensionality Reduction Variable Selection

Nickell Bias in Panel Local Projection: Financial Crises Are Worse Than You Think

1 code implementation27 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.

regression Time Series Analysis

On LASSO for High Dimensional Predictive Regression

no code implementations14 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.

regression Time Series +2

The boosted HP filter is more general than you might think

no code implementations20 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.

Time Series Time Series Analysis +1

Culling the herd of moments with penalized empirical likelihood

no code implementations7 Aug 2021 Jinyuan Chang, Zhentao Shi, Jia Zhang

Models defined by moment conditions are at the center of structural econometric estimation, but economic theory is mostly agnostic about moment selection.

valid

L2-Relaxation: With Applications to Forecast Combination and Portfolio Analysis

1 code implementation19 Oct 2020 Zhentao Shi, Liangjun Su, Tian Xie

This paper tackles forecast combination with many forecasts or minimum variance portfolio selection with many assets.

Forward-Selected Panel Data Approach for Program Evaluation

1 code implementation16 Aug 2019 Zhentao Shi, Jingyi Huang

Policy evaluation is central to economic data analysis, but economists mostly work with observational data in view of limited opportunities to carry out controlled experiments.

counterfactual

Boosting: Why You Can Use the HP Filter

2 code implementations1 May 2019 Peter C. B. Phillips, Zhentao Shi

The Hodrick-Prescott (HP) filter is one of the most widely used econometric methods in applied macroeconomic research.

Time Series Analysis

On LASSO for Predictive Regression

no code implementations7 Oct 2018 Ji Hyung Lee, Zhentao Shi, Zhan Gao

This new finding motivates a novel post-selection adaptive LASSO, which we call the twin adaptive LASSO (TAlasso), to restore variable selection consistency.

regression Variable Selection

Implementing Convex Optimization in R: Two Econometric Examples

3 code implementations27 Jun 2018 Zhan Gao, Zhentao Shi

Economists specify high-dimensional models to address heterogeneity in empirical studies with complex big data.

Computation Econometrics

Structural Estimation of Behavioral Heterogeneity

1 code implementation11 Feb 2018 Zhentao Shi, Huanhuan Zheng

We develop a behavioral asset pricing model in which agents trade in a market with information friction.

Trading and Market Microstructure Econometrics

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