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A new unit root test based on -statistic in ESTAR framework

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  • Shaoping Wang
  • Jiyu Yu

Abstract

This article proposes a new F-type unit test in the exponential smooth transition autoregressive framework. We derive the asymptotic nonstandard distribution of the proposed test and explore its finite sample properties; simulation results show our test has greater power than the tkss test proposed by Kapetanios et al.(2003). Finally, an application on the real exchange rates further underpins its superiority.

Suggested Citation

  • Shaoping Wang & Jiyu Yu, 2017. "A new unit root test based on -statistic in ESTAR framework," Applied Economics Letters, Taylor & Francis Journals, vol. 24(19), pages 1412-1416, November.
    • Handle: RePEc:taf:apeclt:v:24:y:2017:i:19:p:1412-1416
    DOI: 10.1080/13504851.2017.1282135
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    References listed on IDEAS

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    1. 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.
    2. Rapach, David E. & Wohar, Mark E., 2006. "The out-of-sample forecasting performance of nonlinear models of real exchange rate behavior," International Journal of Forecasting, Elsevier, vol. 22(2), pages 341-361.
    3. Gregoriou, Andros & Kontonikas, Alexandros, 2009. "Modeling the behaviour of inflation deviations from the target," Economic Modelling, Elsevier, vol. 26(1), pages 90-95, January.
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