A momentum-threshold autoregressive unit root test with increased power
Recent research has shown the momentum-threshold autoregressive (MTAR) unit root test of Enders and Granger (J. Business Econom. Statist. 16 (1998) 304) to exhibit less power than modified Dickey-Fuller tests when applied to MTAR processes. In this paper a revised MTAR test is proposed which employs local-to-unity detrending. The newly proposed test is shown to possess greater power than both the original MTAR test and modified Dickey-Fuller tests over a range of MTAR processes.
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Volume (Year): 67 (2004)
Issue (Month): 4 (May)
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- Enders, Walter & Granger, Clive W J, 1998.
"Unit-Root Tests and Asymmetric Adjustment with an Example Using the Term Structure of Interest Rates,"
Journal of Business & Economic Statistics,
American Statistical Association, vol. 16(3), pages 304-11, July.
- Enders, Walter & Granger, C. W. J., 1998. "Unit Root Tests and Asymmetric Adjustment with an Example Using the Term Structure of Interest Rates," Staff General Research Papers 1388, Iowa State University, Department of Economics.
- Leybourne, S J, 1995. "Testing for Unit Roots Using Forward and Reverse Dickey-Fuller Regressions," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 57(4), pages 559-71, November.
- George Kapetanios & Yongcheol Shin, 2002. "GLS Detrending for Nonlinear Unit Root Tests," Working Papers 472, Queen Mary University of London, School of Economics and Finance.
- Elliott, Graham & Rothenberg, Thomas J & Stock, James H, 1996.
"Efficient Tests for an Autoregressive Unit Root,"
Econometric Society, vol. 64(4), pages 813-36, July.
- Tom Doan, . "GLSDETREND: RATS procedure to perform local to unity GLS detrending," Statistical Software Components RTS00077, Boston College Department of Economics.
- Graham Elliott & Thomas J. Rothenberg & James H. Stock, 1992. "Efficient Tests for an Autoregressive Unit Root," NBER Technical Working Papers 0130, National Bureau of Economic Research, Inc.
- Tom Doan, . "ERSTEST: RATS procedure to perform Elliott-Rothenberg-Stock unit root tests," Statistical Software Components RTS00066, Boston College Department of Economics.
- Cook, Steven, 2003. "Modified unit root tests and momentum threshold autoregressive processes," Statistics & Probability Letters, Elsevier, vol. 64(1), pages 83-88, August.
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