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On the application of the rank tests for nonlinear cointegration to PPP: The case of Papua New Guinea

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  • Liew, Venus Khim-Sen
  • Ling, Tai-Hu
  • Chia, Ricky Chee-Jiun
  • Yoon, Gawon

Abstract

Much interest has been paid recently to the nonlinear cointegrating relations existing among economic variables. Various testing procedures are already available to test for the existence of nonlinear cointegration. For example, Breitung (2001) proposes rank tests and his testing procedure has been broadly applied. In this study, we warn against a blind application of the rank cointegration tests, particularly to economic variables that evidence certain behavior. As an illustration, we employ the nominal exchange rates and relative prices of Papua New Guinea against her major trading partners with the objective of testing the validity of purchasing power parity for the country. Our simulation results also confirm our warnings. Additionally, we provide some simple solutions to the problem we encounter herein.

Suggested Citation

  • Liew, Venus Khim-Sen & Ling, Tai-Hu & Chia, Ricky Chee-Jiun & Yoon, Gawon, 2012. "On the application of the rank tests for nonlinear cointegration to PPP: The case of Papua New Guinea," Economic Modelling, Elsevier, vol. 29(2), pages 326-332.
  • Handle: RePEc:eee:ecmode:v:29:y:2012:i:2:p:326-332
    DOI: 10.1016/j.econmod.2011.10.017
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    References listed on IDEAS

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    Cited by:

    1. Ricky Chee Jiun Chia & Shiok Ye Lim & Sheue Li Ong, 2014. "Long-Run Validity of Purchasing Power Parity and Cointegration Analysis for Low Income African Countries," Economics Bulletin, AccessEcon, vol. 34(3), pages 1438-1447.
    2. Lim, Shiok Ye & Ho, Chong Mun, 2013. "Nonlinearity in ASEAN-5 export-led growth model: Empirical evidence from nonparametric approach," Economic Modelling, Elsevier, vol. 32(C), pages 136-145.
    3. Andrew Phiri, 2017. "Nonlinear adjustment effects in the purchasing power parity," Journal of Economics and Econometrics, Economics and Econometrics Society, vol. 60(2), pages 14-38.
    4. Kai Yin Woo & Shu Kam Lee, 2018. "Price convergence in the UK supermarket chains: Evidence from nonlinear cointegration approach," Economics and Business Letters, Oviedo University Press, vol. 7(3), pages 115-125.
    5. Phiri, Andrew, 2014. "Purchasing power parity (PPP) between South Africa and her main currency exchange partners: Evidence from asymmetric unit root tests and threshold co-integration analysis," MPRA Paper 53659, University Library of Munich, Germany.

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    More about this item

    Keywords

    Nonlinearity; Cointegration; Rank tests; Purchasing power parity;
    All these keywords.

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models

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