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

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

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.

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Article provided by Elsevier in its journal Economic Modelling.

Volume (Year): 29 (2012)
Issue (Month): 2 ()
Pages: 326-332

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Handle: RePEc:eee:ecmode:v:29:y:2012:i:2:p:326-332
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/30411

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  1. Hong, Seung Hyun & Phillips, Peter C. B., 2010. "Testing Linearity in Cointegrating Relations With an Application to Purchasing Power Parity," Journal of Business & Economic Statistics, American Statistical Association, vol. 28(1), pages 96-114.
  2. Alfred Haug & Syed Basher, 2011. "Linear or nonlinear cointegration in the purchasing power parity relationship?," Applied Economics, Taylor & Francis Journals, vol. 43(2), pages 185-196.
  3. Xiao-Ming Li, 2006. "A Revisit Of International Stock Market Linkages: New Evidence From Rank Tests For Nonlinear Cointegration," Scottish Journal of Political Economy, Scottish Economic Society, vol. 53(2), pages 174-197, 05.
  4. Liew, Venus Khim-Sen & Lee, Hock-Ann & Lim, Kian-Ping, 2005. "Purchasing power parity in Asian economies: further evidence from rank tests for cointegration," MPRA Paper 15530, University Library of Munich, Germany.
  5. Wang, Qiying & Phillips, Peter C.B., 2009. "Asymptotic Theory For Local Time Density Estimation And Nonparametric Cointegrating Regression," Econometric Theory, Cambridge University Press, vol. 25(03), pages 710-738, June.
  6. Guneratne Wickremasinghe, 2009. "Are real exchange rates of Papua New Guinea mean-reverting? Evidence from panel unit root tests," Applied Economics Letters, Taylor & Francis Journals, vol. 16(2), pages 157-161.
  7. Saikkonen, Pentti & Choi, In, 2004. "Cointegrating Smooth Transition Regressions," Econometric Theory, Cambridge University Press, vol. 20(02), pages 301-340, April.
  8. Engle, Robert F & Granger, Clive W J, 1987. "Co-integration and Error Correction: Representation, Estimation, and Testing," Econometrica, Econometric Society, vol. 55(2), pages 251-76, March.
  9. Venus Khim-Sen Liew & Ricky Chee-Jiun Chia & Tai-Hu Ling, 2010. "Long-run validity of purchasing power parity and rank tests for cointegration for Central Asian countries," Applied Economics Letters, Taylor & Francis Journals, vol. 17(11), pages 1073-1077.
  10. Qiying Wang & Peter C.B. Phillips, 2011. "Specification Testing for Nonlinear Cointegrating Regression," Cowles Foundation Discussion Papers 1779, Cowles Foundation for Research in Economics, Yale University, revised Feb 2011.
  11. Guneratne B. Wickremasinghe, 2005. "Purchasing Power Parity of Papua New Guinea: evidence from the floating exchange rate regime," Applied Financial Economics Letters, Taylor and Francis Journals, vol. 1(6), pages 335-338, November.
  12. Ioannis Kasparis & Peter C.B. Phillips, 2009. "Dynamic Misspecification in Nonparametric Cointegrating Regression," Cowles Foundation Discussion Papers 1700, Cowles Foundation for Research in Economics, Yale University.
  13. Breitung, Jorg, 2001. "Rank Tests for Nonlinear Cointegration," Journal of Business & Economic Statistics, American Statistical Association, vol. 19(3), pages 331-40, July.
  14. Choi, In & Saikkonen, Pentti, 2010. "Tests For Nonlinear Cointegration," Econometric Theory, Cambridge University Press, vol. 26(03), pages 682-709, June.
  15. Qiying Wang & Peter C. B. Phillips, 2009. "Structural Nonparametric Cointegrating Regression," Econometrica, Econometric Society, vol. 77(6), pages 1901-1948, November.
  16. In Choi & Pentti Saikkonen, 2004. "Testing linearity in cointegrating smooth transition regressions," Econometrics Journal, Royal Economic Society, vol. 7(2), pages 341-365, December.
  17. Serena Ng & Pierre Perron, 2001. "LAG Length Selection and the Construction of Unit Root Tests with Good Size and Power," Econometrica, Econometric Society, vol. 69(6), pages 1519-1554, November.
  18. Marmer, Vadim, 2008. "Nonlinearity, nonstationarity, and spurious forecasts," Journal of Econometrics, Elsevier, vol. 142(1), pages 1-27, January.
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