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Erscheinungsjahr: 
2002
Schriftenreihe/Nr.: 
Working Paper No. 465
Verlag: 
Queen Mary University of London, Department of Economics, London
Zusammenfassung: 
This paper proposes a simple direct testing procedure to distinguish a linear unit root process from a globally stationary three-regime self-exciting threshold autoregressive process. We derive the asymptotic null distribution of the Wald statistic, and show that it does not depend on unknown fixed threshold values. Monte Carlo evidence clearly indicates that the exponential average of the Wald statistic is more powerful than the Dickey-Fuller test that ignores the threshold nature under the alternative.
Schlagwörter: 
Self-exciting threshold autoregressive models, Unit roots, Globally stationary processes, Threshold cointegration, Wald tests, Monte Carlo simulations, Real exchange rates
JEL: 
C12
C13
C32
Dokumentart: 
Working Paper

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