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Fourier ADF Unit Root Test

Fourier ADF-enhedsrødtest udvider det standard Augmented Dickey-Fuller-rammeværk ved at inkorporere lavfrekvente Fourier-termer i den deterministiske komponent. Dette tillader testen at approksimere glatte, gradvise strukturelle brud i niveauet eller trenden af en tidsserie uden at kræve forudgående kendskab til antal, tidspunkt eller form af brud.

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Kilder

  1. Becker, R., Enders, W., & Lee, J. (2006). A stationarity test in the presence of an unknown number of smooth breaks. Journal of Time Series Analysis, 27(3), 381-409. DOI: 10.1111/j.1467-9892.2006.00478.x
  2. Enders, W., & Lee, J. (2012). A unit root test using a Fourier series to approximate smooth breaks. Oxford Bulletin of Economics and Statistics, 74(4), 574-599. DOI: 10.1111/j.1468-0084.2011.00662.x

Sådan citerer du denne side

ScholarGate. (2026, June 3). Fourier Augmented Dickey-Fuller Unit Root Test. ScholarGate. https://scholargate.app/da/econometrics/fourier-adf-unit-root-test

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ScholarGateFourier ADF unit root test (Fourier Augmented Dickey-Fuller Unit Root Test). Hentet 2026-06-15 fra https://scholargate.app/da/econometrics/fourier-adf-unit-root-test · Datasæt: https://doi.org/10.5281/zenodo.20539026