Regression modelEconometrics / time series

Robusni test jedinice koren (Phillips-Perron, PP)

Robusni test jedinice koren Phillips-Perron proširuje klasični PP test primenom korekcija — kao što su procena kovarijansi otporna na heteroskedastičnost ili kritične vrednosti dobijene divljimждый bootstrapom — koje održavaju validnu inferenciju kada varijansa greške vremenske serije nije konstantna ili pokazuje neuslovnu heteroskedastičnost, uslove pod kojima je standardni PP test ozbiljno iskrivljen u pogledu veličine.

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Izvori

  1. 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
  2. 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

Kako citirati ovu stranicu

ScholarGate. (2026, June 3). Robust Phillips-Perron Unit Root Test. ScholarGate. https://scholargate.app/sr/econometrics/robust-pp-unit-root-test

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ScholarGateRobust PP Unit Root Test (Robust Phillips-Perron Unit Root Test). Preuzeto 2026-06-15 sa https://scholargate.app/sr/econometrics/robust-pp-unit-root-test · Skup podataka: https://doi.org/10.5281/zenodo.20539026