IDEAS home Printed from https://ideas.repec.org/p/pre/wpaper/201502.html
   My bibliography  Save this paper

Assessment of Monetary Union in SADC: Evidence from Cointegration and Panel Unit Root Tests

Author

Listed:
  • Mulatu F. Zehirun

    () (Department of Economics, Faculty of Economics and Finance, Tshwane University of Technology)

  • Marthinus C. Breitenbach

    () (Department of Economics, University of Pretoria)

  • Francis M. Kemegue

    () (Department of Economics, University of Pretoria)

Abstract

In this paper we investigate the likelihood of a proposed monetary union in the Southern African Development Community (SADC) being successful from the viewpoint of the Generalised Purchasing Power Parity (GPPP) hypothesis and optimum currency area (OCA) theory. We apply Johansen’s multivariate co-integration technique, panel unit root tests, Pedroni’s residual cointegration test and error correction based panel cointegration tests. The findings from this study confirm that GPPP holds among SADC member countries included in this study on account of cointegration and stationarity in real exchange rate series. The South African rand normalised long run beta coefficients of all the real exchange rates are below one except in the case of the Mauritian rupee and all bear negative signs except in the case of the Angolan New Kwanza and Mauritian rupee. This evidence support monetary union in the region except for Angola and Mauritius. However, the absolute magnitudes of the short run adjustment coefficients of SADC countries’ real exchange rates are low and bear positive signs in some cases. This finding implies that the observed slow speed of adjustment for the (log) real exchange rate of SADC member states might constrain the effectiveness of stabilization policies in the wake of external shocks, rendering SADC countries vulnerable to macroeconomic instability in the region. This result has important policy implications for the proposed monetary union in SADC.

Suggested Citation

  • 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.
  • Handle: RePEc:pre:wpaper:201502
    as

    Download full text from publisher

    File URL: http://www.up.ac.za/media/shared/61/WP/wp_2015_02.zp45755.pdf
    Download Restriction: no

    Other versions of this item:

    References listed on IDEAS

    as
    1. S. Jules-Armand Tapsoba, 2009. "Trade Intensity and Business Cycle Synchronicity in Africa," Journal of African Economies, Centre for the Study of African Economies (CSAE), vol. 18(2), pages 287-318, March.
    2. Kwiatkowski, Denis & Phillips, Peter C. B. & Schmidt, Peter & Shin, Yongcheol, 1992. "Testing the null hypothesis of stationarity against the alternative of a unit root : How sure are we that economic time series have a unit root?," Journal of Econometrics, Elsevier, vol. 54(1-3), pages 159-178.
    3. Dickey, David A & Fuller, Wayne A, 1981. "Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root," Econometrica, Econometric Society, vol. 49(4), pages 1057-1072, June.
    4. 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.
    5. Snaith, Stuart, 2012. "The PPP debate: Multiple breaks and cross-sectional dependence," Economics Letters, Elsevier, vol. 115(3), pages 342-344.
    6. Damiaan Persyn & Joakim Westerlund, 2008. "Error-correction–based cointegration tests for panel data," Stata Journal, StataCorp LP, vol. 8(2), pages 232-241, June.
    7. Tsangyao Chang & De-Piao Tang & Wen-Chi Liu & Chia-Hao Lee, 2010. "Purchasing power parity for 15 COMESA and SADC countries: evidence based on panel SURADF tests," Applied Economics Letters, Taylor & Francis Journals, vol. 17(17), pages 1721-1727.
    8. Alan M. Taylor & Mark P. Taylor, 2004. "The Purchasing Power Parity Debate," Journal of Economic Perspectives, American Economic Association, vol. 18(4), pages 135-158, Fall.
    9. Christopoulos, Dimitris K. & León-Ledesma, Miguel A., 2010. "Smooth breaks and non-linear mean reversion: Post-Bretton Woods real exchange rates," Journal of International Money and Finance, Elsevier, vol. 29(6), pages 1076-1093, October.
    10. Im, Kyung So & Pesaran, M. Hashem & Shin, Yongcheol, 2003. "Testing for unit roots in heterogeneous panels," Journal of Econometrics, Elsevier, vol. 115(1), pages 53-74, July.
    11. Lau, Chi Keung Marco & Suvankulov, Farrukh & Su, Yongyang & Chau, Frankie, 2012. "Some cautions on the use of nonlinear panel unit root tests: Evidence from a modified series-specific non-linear panel unit-root test," Economic Modelling, Elsevier, vol. 29(3), pages 810-816.
    12. Mulatu F. Zerihun & Marthinus C. Breitenbach & Francis Kemegue, 2014. "A Greek Wedding In SADC? Testing For Structural Symmetry Towards SADC Monetary Integration," The African Finance Journal, Africagrowth Institute, vol. 16(2), pages 16-33.
    13. 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.
    14. Robert M Burgess, 2009. "The Southern African Development Community's Macroeconomic Convergence Program; Initial Performance," IMF Staff Position Notes 2009/14, International Monetary Fund.
    15. Peter Pedroni & Tim Vogelsang, 2005. "Robust Unit Root and Cointegration Rank Tests for Panels and Large Systems," Department of Economics Working Papers 2005-04, Department of Economics, Williams College.
    16. Mkenda, Beatrice Kalinda, 2001. "Is East Africa an Optimum Currency Area?," Working Papers in Economics 41, University of Gothenburg, Department of Economics.
    17. Levin, Andrew & Lin, Chien-Fu & James Chu, Chia-Shang, 2002. "Unit root tests in panel data: asymptotic and finite-sample properties," Journal of Econometrics, Elsevier, vol. 108(1), pages 1-24, May.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Simplice Asongu & Jacinta Nwachukwu & Vanessa Tchamyou, 2017. "A Literature Survey On Proposed African Monetary Unions," Journal of Economic Surveys, Wiley Blackwell, vol. 31(3), pages 878-902, July.
    2. Simplice Asongu & Jacinta C. Nwachukwu & Vanessa S. Tchamyou, 2017. "A summary of a survey on proposed African monetary unions," Working Papers 17/008, African Governance and Development Institute..

    More about this item

    Keywords

    SADC; OCA; GPPP; real exchange rate; cointegration; panel unit root;

    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
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • F15 - International Economics - - Trade - - - Economic Integration
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:pre:wpaper:201502. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Rangan Gupta). General contact details of provider: http://edirc.repec.org/data/decupza.html .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.