Regression modelEconometrics / time series
稳健 Phillips-Perron (PP) 单位根检验
稳健 Phillips-Perron (PP) 单位根检验是对经典 PP 检验的扩展，通过应用修正（例如异方差一致协方差估计或 wild-bootstrap 临界值）来维持在时间序列误差方差非恒定或表现出无条件异方差的有效推断，而在这些条件下标准 PP 检验的尺寸会严重扭曲。
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来源
- Phillips, P. C. B., & Perron, P. (1988). Testing for a unit root in time series regression. Biometrika, 75(2), 335–346. DOI: 10.1093/biomet/75.2.335 ↗
- Cavaliere, G., & Taylor, A. M. R. (2008). Bootstrap unit root tests for time series with nonstationary volatility. Econometric Theory, 24(1), 43–71. DOI: 10.1017/S0266466608080043 ↗
如何引用本页
ScholarGate. (2026, June 3). Robust Phillips-Perron Unit Root Test. ScholarGate. https://scholargate.app/zh/econometrics/robust-pp-unit-root-test
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
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