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	Panel Zivot-Andrews test för strukturella brott i enhetsrötter	Zivot-Andrews strukturbrottest
Ämnesområde	Ekonometri	Ekonometri
Familj	Regression model	Regression model
Ursprungsår	1992 (panel extension: 2000s)	1992
Upphovsperson	Zivot & Andrews (1992); extended to panel settings by subsequent literature	Eric Zivot and Donald W. K. Andrews
Typ	Unit root test with endogenous structural break	Unit root test with endogenous structural break
Ursprungskälla	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 & Economic Statistics, 10(3), 251–270.	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 & Economic Statistics, 10(3), 251–270.
Alias	panel ZA test, panel structural break unit root test, Zivot-Andrews panel unit root test, panel endogenous break unit root test	ZA test, Zivot-Andrews unit root test, endogenous structural break unit root test, ZA structural break test
Närliggande	6	6
Sammanfattning	The Panel Zivot-Andrews test extends the single-series Zivot-Andrews (1992) structural break unit root test to panel data, allowing each cross-sectional unit to have its own endogenously determined break date. It tests the null of a unit root against the alternative of stationarity with a one-time structural break, accounting for regime shifts that bias standard panel unit root tests toward false non-rejection.	The Zivot-Andrews (ZA) test is a unit root test that endogenously identifies the most likely location of a single structural break in a time series. Unlike the standard ADF test, it does not require the researcher to pre-specify when the break occurred, making it robust to data-driven regime shifts such as policy changes, financial crises, or major economic events.