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Strukturel Brud ADF Enhedrodstest

Den strukturelle brud ADF enhedrodstest udvider den standard Augmented Dickey-Fuller test til at tillade et eller flere diskrete skift i niveauet eller trenden af en tidsserie. Da ignorering af et strukturelt brud oppuster seriens tilsyneladende persistens, forhindrer denne test falsk accept af enhedrodshypotesen, når serien faktisk er stationær omkring et skiftende gennemsnit eller en trend.

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Kilder

  1. Perron, P. (1989). The great crash, the oil price shock, and the unit root hypothesis. Econometrica, 57(6), 1361-1401. DOI: 10.2307/1913712
  2. Zivot, E., & Andrews, D. W. K. (1992). Further evidence on the great crash, the oil-price shock, and the unit-root hypothesis. Journal of Business and Economic Statistics, 10(3), 251-270. DOI: 10.1080/07350015.1992.10509904

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

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