Non-linear unit root testing in the presence of heavy-tailed innovation processes
AbstractThe literature concerning the impact of heavy-tailed innovations upon unit root tests is extended via analysis of the finite-sample distribution and size of the non-linear unit of Kapetanios et al. (2003) in the presence of alternative finite and infinite variance innovation processes. Simulation results obtained show the test to exhibit a degree of oversizing far in excess of that previously noted for the linear Dickey-Fuller (1979) test.
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Bibliographic InfoArticle provided by AccessEcon in its journal Economics Bulletin.
Volume (Year): 3 (2008)
Issue (Month): 38 ()
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- C2 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables
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- Liew, Venus Khim-sen & Baharumshah, Ahmad Zubaidi & Chong, Terence Tai-leung, 2004.
"Are Asian real exchange rates stationary?,"
Elsevier, vol. 83(3), pages 313-316, June.
- Kapetanios, George & Shin, Yongcheol & Snell, Andy, 2003. "Testing for a unit root in the nonlinear STAR framework," Journal of Econometrics, Elsevier, vol. 112(2), pages 359-379, February.
- Deo, Rohit S., 2000. "On estimation and testing goodness of fit for m-dependent stable sequences," Journal of Econometrics, Elsevier, vol. 99(2), pages 349-372, December.
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