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Market efficiency of floating exchange rate systems: Some evidence from Pacific-Asian countries

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  • Al-Khazali, Osamah M.
  • Leduc, Guillaume
  • Pyun, Chong Soo

Abstract

This paper examines the random walk hypothesis (RWH) and the martingale difference hypothesis (MDH) for the Australian dollar and five Asian emerging currencies relative to three benchmark currencies. We use Wright's (2000) non-parametric procedure to test the RWH and Kuan and Lee's (2004) procedure to test the MDH. The results of Wright's tests and Kuan and Lee's test are adjusted for size distortion. The RWH is rejected for all currencies before and after the Asian crisis. The results of Kuan and Lee's test are consistent with the fact that the RWH is more stringent than the MDH. For the three testing periods, the MDH fails to reject the AUD. For all other currencies the MDH is rejected at least for one benchmark over two periods, indicating that the market efficiency in these markets have not significantly improved under the floating rate systems following the Asian financial crisis.

Suggested Citation

  • Al-Khazali, Osamah M. & Leduc, Guillaume & Pyun, Chong Soo, 2011. "Market efficiency of floating exchange rate systems: Some evidence from Pacific-Asian countries," Global Finance Journal, Elsevier, vol. 22(2), pages 154-168.
    • Handle: RePEc:eee:glofin:v:22:y:2011:i:2:p:154-168
    DOI: 10.1016/j.gfj.2011.10.005
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    Cited by:

    1. Charles, Amélie & Darné, Olivier & Kim, Jae H., 2012. "Exchange-rate return predictability and the adaptive markets hypothesis: Evidence from major foreign exchange rates," Journal of International Money and Finance, Elsevier, vol. 31(6), pages 1607-1626.
    2. Katusiime, Lorna & Shamsuddin, Abul & Agbola, Frank W., 2015. "Foreign exchange market efficiency and profitability of trading rules: Evidence from a developing country," International Review of Economics & Finance, Elsevier, vol. 35(C), pages 315-332.
    3. Diniz-Maganini, Natalia & Rasheed, Abdul A. & Sheng, Hsia Hua, 2023. "Price efficiency of the foreign exchange rates of BRICS countries: A comparative analysis," Latin American Journal of Central Banking (previously Monetaria), Elsevier, vol. 4(1).
    4. Al-Khazali, Osamah M. & Pyun, Chong Soo & Kim, Daewon, 2012. "Are exchange rate movements predictable in Asia-Pacific markets? Evidence of random walk and martingale difference processes," International Review of Economics & Finance, Elsevier, vol. 21(1), pages 221-231.
    5. Ying-Sing Liu, 2021. "The Impact of Trading Information Sets on Exchange Rate Change and Volatility: Evidence From Taiwan," SAGE Open, , vol. 11(4), pages 21582440211, November.

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    More about this item

    Keywords

    Efficiency of foreign exchange markets; Random walk; Martingale difference hypothesis; Emerging currency markets;
    All these keywords.

    JEL classification:

    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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