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Testing For Ppp Using Sadc Real Exchange Rates

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  • Thabo M. Mokoena
  • Rangan Gupta
  • Reneé Van Eyden

Abstract

This paper attempts to provide evidence indicating that the purchasing power parity (PPP) puzzle is becoming less of a puzzle. It present the results of Augmented Dickey–Fuller test, non‐linear tests of non‐stationarity and Bayesian unit root tests, applied to 10 Southern African Development Community countries. The Bayesian tests were found to be biased in favour of a trend stationary model in all cases. It is argued that non‐linear approaches to exchange rate adjustments are likely to provide a firmer basis for inference and stronger support for the PPP in the long‐term. This is more so at 1 and 5% levels of significance.

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  • Thabo M. Mokoena & Rangan Gupta & Reneé Van Eyden, 2009. "Testing For Ppp Using Sadc Real Exchange Rates," South African Journal of Economics, Economic Society of South Africa, vol. 77(3), pages 351-362, September.
    • Handle: RePEc:bla:sajeco:v:77:y:2009:i:3:p:351-362
    DOI: 10.1111/j.1813-6982.2009.01220.x
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    Cited by:

    1. Mulatu F. Zehirun & Marthinus C. Breitenbach & Francis M. Kemegue, 2015. "Assessment of Monetary Union in SADC: Evidence from Cointegration and Panel Unit Root Tests," Working Papers 201502, University of Pretoria, Department of Economics.
    2. Mehmet Balcilar & Rangan Gupta & Charl Jooste, 2014. "Is the Rand Really Decoupled from Economic Fundamentals?," Working Papers 201439, University of Pretoria, Department of Economics.
    3. Riané de Bruyn & Rangan Gupta & Lardo Stander, 2013. "Testing the Monetary Model for Exchange Rate Determination in South Africa: Evidence from 101 Years of Data," Contemporary Economics, University of Economics and Human Sciences in Warsaw., vol. 7(1), March.
    4. Thabo M. Mokoena & Gupta, R. & Van Eyden, R., 2009. "Half-Life Deviations from PPP in the South African Development Community (SADC)," Applied Econometrics and International Development, Euro-American Association of Economic Development, vol. 9(1).
    5. Zerihun, Mulatu F. & Breitenbach, Marthinus C., 2016. "Nonlinear approaches in testing PPP: Evidence from Southern African development community," Economic Modelling, Elsevier, vol. 56(C), pages 162-167.
    6. David De Villiers & Andrew Phiri, 2022. "Towards resolving the purchasing power parity (PPP) ‘Puzzle’ in newly industrialized countries (NIC’s)," The Journal of International Trade & Economic Development, Taylor & Francis Journals, vol. 31(2), pages 161-180, February.
    7. Mulatu F. Zerihun & Marthinus C. Breitenbach, 2018. "Is SADC an optimal currency area? Evidence from the generalized purchasing power parity test," Economic Change and Restructuring, Springer, vol. 51(2), pages 173-188, May.

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    More about this item

    JEL classification:

    • C11 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Bayesian Analysis: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • F31 - International Economics - - International Finance - - - Foreign Exchange

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