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Exchange Rate Risk and International Equity Portfolio Diversification: A South African Investor’s Perspective

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Listed:
  • Charles Raoul Tchuinkam Djemo
  • John Weirstrass Muteba Mwamba
  • Mathias Mandla Manguzvane

    (University of Johannesburg)

Abstract

This paper examines the impact of foreign exchange rate risk on the expected return of a South African based investor's portfolio. We use the GARCH based Value at Risk (VaR) to compute the upside and downside risk measures while the generalised Pareto distribution (GPD) method is applied to separate left tail risk from right tail risk. Our findings reveal that international diversification substantially enhances the South African investor's portfolio return, with a noticeable yield increase in China, Brazil, Argentina, Mexico, and Russia. Furthermore, the Singaporean dollar and Chinese Yuan are found to have a negative impact on the portfolio return, while the rest of the currencies have a positive impact on the portfolio return. Moreover, we found that exchange rate risk is underestimated when using the variance-covariance method.

Suggested Citation

  • Charles Raoul Tchuinkam Djemo & John Weirstrass Muteba Mwamba & Mathias Mandla Manguzvane, 2021. "Exchange Rate Risk and International Equity Portfolio Diversification: A South African Investor’s Perspective," The African Finance Journal, Africagrowth Institute, vol. 23(2), pages 36-49.
    • Handle: RePEc:afj:journl:v:23:y:2021:i:2:p:36-49
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    File URL: https://journals.co.za/doi/abs/10.10520/ejc-finj_v23_n2_a3
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    1. Sammo Kang & Soyoung Kim & Jeong Wook Lee, 2016. "Reexamining the Exchange Rate Exposure Puzzle by Classifying Exchange Rate Risks into Two Types," Global Economic Review, Taylor & Francis Journals, vol. 45(2), pages 116-133, June.
    2. Jongmooo Jay Choi, 1989. "Diversification, Exchange Risks and Corporate International Investment," Journal of International Business Studies, Palgrave Macmillan;Academy of International Business, vol. 20(1), pages 145-155, March.
    3. Zongrun Wang & Weitao Wu & Chao Chen & Yanju Zhou, 2010. "The exchange rate risk of Chinese yuan: Using VaR and ES based on extreme value theory," Journal of Applied Statistics, Taylor & Francis Journals, vol. 37(2), pages 265-282.
    4. Alexandra Horobet & Livia Ilie, 2010. "International Investments With Exchange Rate Risk: The Case Of Central And Eastern Europe Currencies," Studies in Business and Economics, Lucian Blaga University of Sibiu, Faculty of Economic Sciences, vol. 5(3), pages 185-200, December.
    5. Fidora, Michael & Fratzscher, Marcel & Thimann, Christian, 2007. "Home bias in global bond and equity markets: The role of real exchange rate volatility," Journal of International Money and Finance, Elsevier, vol. 26(4), pages 631-655, June.
    6. Nelson, Daniel B, 1991. "Conditional Heteroskedasticity in Asset Returns: A New Approach," Econometrica, Econometric Society, vol. 59(2), pages 347-370, March.
    7. Rustam Ibragimov, 2009. "Portfolio diversification and value at risk under thick-tailedness," Quantitative Finance, Taylor & Francis Journals, vol. 9(5), pages 565-580.
    8. Paul H. Kupiec, 1995. "Techniques for verifying the accuracy of risk measurement models," Finance and Economics Discussion Series 95-24, Board of Governors of the Federal Reserve System (U.S.).
    9. Kiani, Khurshid M., 2011. "Relationship between portfolio diversification and value at risk: Empirical evidence," Emerging Markets Review, Elsevier, vol. 12(4), pages 443-459.
    10. Jun, Sang-Gyung & Marathe, Achla & Shawky, Hany A., 2003. "Liquidity and stock returns in emerging equity markets," Emerging Markets Review, Elsevier, vol. 4(1), pages 1-24, March.
    11. Aymen BEN REJEB & Ousama BEN SALHA & Jaleleddine BEN REJEB, 2012. "Value-at-Risk Analysis for the Tunisian Currency Market: A Comparative Study," International Journal of Economics and Financial Issues, Econjournals, vol. 2(2), pages 110-125.
    12. Kevin Dowd, 2015. "Central Bank Stress Tests: Mad, Bad, and Dangerous," Cato Journal, Cato Journal, Cato Institute, vol. 35(3), pages 507-524, Fall.
    13. Cabedo Semper, J. David & Moya Clemente, Ismael, 2003. "Value at risk calculation through ARCH factor methodology: Proposal and comparative analysis," European Journal of Operational Research, Elsevier, vol. 150(3), pages 516-528, November.
    14. Jon Danielsson & Casper G. De Vries, 2000. "Value-at-Risk and Extreme Returns," Annals of Economics and Statistics, GENES, issue 60, pages 239-270.
    15. repec:adr:anecst:y:2000:i:60:p:10 is not listed on IDEAS
    16. repec:bla:jfinan:v:43:y:1988:i:1:p:197-215 is not listed on IDEAS
    17. Nahum Biger, 1979. "Exchange Risk Implications of International Portfolio Diversification," Journal of International Business Studies, Palgrave Macmillan;Academy of International Business, vol. 10(2), pages 63-74, June.
    18. Bibi Z. Chummun, 2017. "Mobile Microinsurance and Financial Inclusion: The Case of Developing African Countries," Africagrowth Agenda, Africagrowth Institute, vol. 14(3), pages 12-16.
    19. Cheol S. Eun & Bruce G. Resnick, 1994. "International Diversification of Investment Portfolios: U.S. and Japanese Perspectives," Management Science, INFORMS, vol. 40(1), pages 140-161, January.
    20. Mazin A.M. Al Janabi, 2006. "Foreign-exchange trading risk management with value at risk: Case analysis of the Moroccan market," Journal of Risk Finance, Emerald Group Publishing, vol. 7(3), pages 273-291, May.
    21. Engle, Robert F. & Manganelli, Simone, 2001. "Value at risk models in finance," Working Paper Series 75, European Central Bank.
    22. Engle, Robert F, 1982. "Autoregressive Conditional Heteroscedasticity with Estimates of the Variance of United Kingdom Inflation," Econometrica, Econometric Society, vol. 50(4), pages 987-1007, July.
    23. Kaplanis, Evi & Schaefer, Stephen M., 1991. "Exchange risk and international diversification in bond and equity portfolios," Journal of Economics and Business, Elsevier, vol. 43(4), pages 287-307, November.
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    More about this item

    Keywords

    International Diversification; Exchange Rate Risk; Portfolio Selection; Value at Risk;
    All these keywords.

    JEL classification:

    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill

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