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Unit roots or nonlinear stationarity in Turkish real exchange rates

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  • Haluk Erlat

Abstract

The objective of this paper is to test if Turkish real exchange rates have a linear unit root or are generated by an Exponential Smooth Transition Autoregressive Model for the post-1980 period. Using two real exchange rates, one with the USA and the other with Germany, strong evidence of nonlinear stationarity was found for the US CPI-based series but no such evidence for the DM CPI-based series. When compared with earlier results in a previous paper where the alternative of the linear unit root test was stationarity with multiple shifts in the deterministic terms, it was found that similar results were obtained for the US CPI-based series but not for the DM CPI-based one, possibly implying that the multiple shifts approach may be more appropriate for the Turkish series.

Suggested Citation

  • Haluk Erlat, 2004. "Unit roots or nonlinear stationarity in Turkish real exchange rates," Applied Economics Letters, Taylor & Francis Journals, vol. 11(10), pages 645-650.
    • Handle: RePEc:taf:apeclt:v:11:y:2004:i:10:p:645-650
    DOI: 10.1080/1350485042000238870
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    Cited by:

    1. Emmanuel Numapau Gyamfi & Adam Anokye Mohammed, 2017. "Validity of Purchasing Power Parity in BRICS under a DFA Approach," Acta Universitatis Danubius. OEconomica, Danubius University of Galati, issue 13(1), pages 17-28, February.
    2. Zeynel Abidin Ozdemir, 2007. "The purchasing power parity hypothesis in Turkey: evidence from nonlinear STAR error correction models," Applied Economics Letters, Taylor & Francis Journals, vol. 15(4), pages 307-311.
    3. Mohsen Bahmani-Oskooee & Ali Kutan & Su Zhou, 2009. "Towards solving the PPP puzzle: evidence from 113 countries," Applied Economics, Taylor & Francis Journals, vol. 41(24), pages 3057-3066.
    4. Claudio Bonilla & Rafael Romero-Meza & Melvin Hinich, 2006. "Episodic nonlinearity in Latin American stock market indices," Applied Economics Letters, Taylor & Francis Journals, vol. 13(3), pages 195-199.
    5. Mohsen Bahmani-Oskooee & Abera Gelan, 2006. "Testing the PPP in the non-linear STAR Framework: Evidence from Africa," Economics Bulletin, AccessEcon, vol. 6(17), pages 1-15.
    6. Luis Alberiko Gil-Alana & Tommaso Trani, 2019. "An examination of trade-weighted real exchange rates based on fractional integration," International Economics, CEPII research center, issue 158, pages 64-76.
    7. Haluk Erlat, 2009. "Persistence in Turkish Real Exchange Rates: Panel Approaches," FIW Working Paper series 029, FIW.
    8. Zeynel Abidin Ozdemir & Emre Aksoy, 2015. "Are real exchanges rate series really persistent?: evidence from three commonwealth of independent states countries," Applied Economics, Taylor & Francis Journals, vol. 47(40), pages 4299-4309, August.
    9. Aviral Tiwari & Muhammad Shahbaz, 2014. "Revisiting Purchasing Power Parity for India using threshold cointegration and nonlinear unit root test," Economic Change and Restructuring, Springer, vol. 47(2), pages 117-133, May.
    10. repec:ebl:ecbull:v:6:y:2006:i:17:p:1-15 is not listed on IDEAS
    11. Dilem Yıldırım, 2016. "Empirical Investigation of Purchasing Power Parity for Turkey: Evidence from Recent Nonlinear Unit Root Tests," ERC Working Papers 1604, ERC - Economic Research Center, Middle East Technical University, revised Apr 2016.
    12. Xie, Zixiong & Chen, Shyh-Wei & Hsieh, Chun-Kuei, 2021. "Facing up to the polysemy of purchasing power parity: New international evidence," Economic Modelling, Elsevier, vol. 98(C), pages 247-265.
    13. Mohsen Bahmani-Oskooee & Omid Ranjbar, 2016. "Quantile unit root test and PPP: evidence from 23 OECD countries," Applied Economics, Taylor & Francis Journals, vol. 48(31), pages 2899-2911, July.
    14. Bulent Guloglu & Serdar Ispira & Deniz Okat, 2011. "Testing the validity of quasi PPP hypothesis: evidence from a recent panel unit root test with structural breaks," Applied Economics Letters, Taylor & Francis Journals, vol. 18(18), pages 1817-1822, December.

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