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mainly employed traditional unit-root tests, our research stands out for its use of novel panel stationarity tests that …
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Volatility break robust panel unit root tests (PURTs) recently proposed by Herwartz and Siedenburg (Computational … reinvestigates whether there is a unit root in OECD inflation rates. We find evidence that inflation is stationary for long …
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Indices of financial returns typically display sample kurtosis that declines towards the Gaussian value 3 as the sampling interval increases. This paper uses stochastic unit root (STUR) and continuous time analysis to explain the phenomenon. Limit theory for the sample kurtosis reveals that...
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