विधियों की तुलना करें

	फूरियर जिवोट-एंड्रयूज यूनिट रूट टेस्ट	संरचनात्मक विराम एডিএফ इकाई मूल परीक्षण
क्षेत्र	अर्थमिति	अर्थमिति
परिवार	Regression model	Regression model
उद्भव वर्ष	2012	1989-1992
प्रवर्तक	Enders & Lee (2012), extending Zivot & Andrews (1992)	Perron (1989); Zivot and Andrews (1992)
प्रकार	Unit root test with smooth structural break	Unit root test with structural break
मौलिक स्रोत	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.	Perron, P. (1989). The great crash, the oil price shock, and the unit root hypothesis. Econometrica, 57(6), 1361-1401.
उपनाम	Fourier ZA test, FZA unit root test, Fourier structural break unit root test, smooth structural break ADF test	ADF with structural break, Perron unit root test, break-augmented ADF, unit root test with structural change
संबंधित	6	6
सारांश	The Fourier Zivot-Andrews test extends the classic Zivot-Andrews (1992) unit root test by replacing sharp, single structural break dummies with a low-frequency Fourier approximation, allowing the test to accommodate smooth, gradual, and multiple unknown breaks in the level or trend of a series.	The structural break ADF unit root test extends the standard Augmented Dickey-Fuller test to allow for one or more discrete shifts in the level or trend of a time series. Because ignoring a structural break inflates the apparent persistence of a series, this test prevents false acceptance of the unit root null when the series is actually stationary around a shifting mean or trend.