Módszerek összehasonlítása

	Panel Zivot-Andrews egységgyök-teszt strukturális töréssel	Hadri Panel KPSS Stacionaritási Teszt
Tudományterület	Ökonometria	Ökonometria
Módszercsalád	Regression model	Regression model
Keletkezés éve	1992 (panel extension: 2000s)	2000
Megalkotó	Zivot & Andrews (1992); extended to panel settings by subsequent literature	Hadri (2000), extending Kwiatkowski, Phillips, Schmidt, and Shin (1992)
Típus	Unit root test with endogenous structural break	Panel stationarity test
Alapmű	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.	Hadri, K. (2000). Testing for stationarity in heterogeneous panel data. Econometrics Journal, 3(2), 148-161.
Alternatív nevek	panel ZA test, panel structural break unit root test, Zivot-Andrews panel unit root test, panel endogenous break unit root test	KPSS panel stationarity test, panel stationarity test, Hadri LM test, panel KPSS
Kapcsolódó	6	6
Összefoglaló	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 Panel KPSS test, introduced by Hadri (2000), tests the null hypothesis that all series in a panel are stationary against the alternative that some or all contain a unit root. It extends the univariate KPSS framework to panel data by aggregating individual LM statistics, providing higher power than unit-root tests when most series are in fact stationary.