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Nonlinearities in real exchange rate determination: do African exchange rates follow a radom walk?

  • Juan Carlos Cuestas
  • Estefania Mourelle

In this paper we aim at modelling the long run behaviour of the Real Effective Exchange Rates (REER) for a pool of African countries. Not much attention has been paid to this group of countries, in particular, to the existence of nonlinearities in the long run path of such a variable. Controlling for two sources of nonlinearites, i.e. asymmetric adjustment to equilibrium and nonlinear deterministic trends allows us to gain some insight about the behaviour of the African REER. We find that these sources of nonlinearites help us to explain the apparent unit root behaviour found applying linear unit root tests for most of the countries.

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File URL: http://www.ntu.ac.uk/research/document_uploads/85418.pdf
File Function: First version, 2008
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Paper provided by Nottingham Trent University, Nottingham Business School, Economics Division in its series Working Papers with number 2008/8.

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Date of creation: Jul 2008
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Handle: RePEc:nbs:wpaper:2008/8
Contact details of provider: Web page: http://www.ntu.ac.uk/nbs

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  23. Juan Carlos Cuestas, 2009. "Purchasing power parity in Central and Eastern European countries: an analysis of unit roots and nonlinearities," Applied Economics Letters, Taylor & Francis Journals, vol. 16(1), pages 87-94.
  24. Ata Assaf, 2006. "Nonlinear Trend Stationarity in Real Exchange Rates: Evidence from Nonlinear ADF tests," Annals of Economics and Finance, Society for AEF, vol. 7(2), pages 283-294, November.
  25. 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.
  26. David O. Cushman, 2008. "Real exchange rates may have nonlinear trends," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 13(2), pages 158-173.
  27. Michael, Panos & Nobay, A Robert & Peel, David A, 1997. "Transactions Costs and Nonlinear Adjustment in Real Exchange Rates: An Empirical Investigation," Journal of Political Economy, University of Chicago Press, vol. 105(4), pages 862-79, August.
  28. Mohsen Bahmani-Oskooee & Abera Gelan, 2007. "Real and nominal effective exchange rates for African countries," Applied Economics, Taylor & Francis Journals, vol. 39(8), pages 961-979.
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