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Hypothesis testUnit-root tests

Kipimo cha DF-GLS: Kipimo cha Kujiondoa Mwenendo kwa Kutumia Mbinu ya Dickey-Fuller

Kipimo cha DF-GLS, kilichoanzishwa na Elliott, Rothenberg, na Stock (1996), ni utaratibu uliorekebishwa wa Dickey-Fuller ulioimarishwa ambao hutumia mbinu ya generalized least squares (GLS) ya kuondoa mwenendo kabla ya usajili wa kawaida wa mizizi-moja. Kwa kuondoa vipengele vya kiholela chini ya mbadala wa karibu badala ya dhana ya sifuri, kipimo hupata nguvu ya karibu-bora katika kugundua utulivu katika mfululizo wa wakati, na kuifanya kuwa kipimo cha mizizi-moja kinachopendelewa katika uchumi wa kiutendaji wakati mwelekeo au kizuizi kipo.

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Vyanzo

  1. Elliott, G., Rothenberg, T. J., & Stock, J. H. (1996). Efficient tests for an autoregressive unit root. Econometrica, 64(4), 813–836. DOI: 10.2307/2171846

Jinsi ya kunukuu ukurasa huu

ScholarGate. (2026, June 2). Dickey-Fuller GLS (ERS) Unit-Root Test. ScholarGate. https://scholargate.app/sw/econometrics/df-gls

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Imerejelewa na

ScholarGateDF-GLS Test (Dickey-Fuller GLS (ERS) Unit-Root Test). Imepatikana 2026-06-15 kutoka https://scholargate.app/sw/econometrics/df-gls · Seti ya data: https://doi.org/10.5281/zenodo.20539026