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Regression modelEconometrics / time series

Kipimo cha Phillips-Perron cha Mizizi ya Muungano

Kipimo cha Phillips-Perron (PP) ni kipimo kisicho cha kiparagrafu cha mizizi ya muungano kwa safu za muda ambacho hurekebisha kwa uhusiano wa mfululizo na uhuru wa kiasi katika kipengele cha makosa bila kuongeza tofauti za kuchelewa. Kuanzishwa na Phillips na Perron (1988), kinatumia kiongezi cha kiwango cha muda mrefu kinachotokana na kernel kurekebisha takwimu za Dickey-Fuller, na kuifanya kuwa thabiti kwa darasa pana la michakato ya makosa yenye utegemezi dhaifu.

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Vyanzo

  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. Hamilton, J. D. (1994). Time Series Analysis. Princeton University Press. ISBN: 978-0691042893

Jinsi ya kunukuu ukurasa huu

ScholarGate. (2026, June 3). Phillips-Perron Unit Root Test. ScholarGate. https://scholargate.app/sw/econometrics/phillips-perron-unit-root-test

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Imerejelewa na

ScholarGatePhillips-Perron unit root test (Phillips-Perron Unit Root Test). Imepatikana 2026-06-15 kutoka https://scholargate.app/sw/econometrics/phillips-perron-unit-root-test · Seti ya data: https://doi.org/10.5281/zenodo.20539026