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A New Variance Ratio Test of Random Walk in Emerging Markets: A Revisit

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  • Osamah M. Al-Khazali
  • David K. Ding
  • Chong Soo Pyun
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    Abstract

    Using a nonparametric variance ratio (VR) test, we revisit the empirical validity of the random walk hypothesis in eight emerging markets in the Middle East and North Africa (MENA). After correcting for measurement biases caused by thin and infrequent trading prevalent in nascent and small stock markets, we cannot reject the random walk hypothesis for the MENA markets. We conclude that a nonparametric VR test is appropriate for emerging stock markets, and argue that our findings can reconcile previously contradictory results regarding the efficiency of MENA markets. Copyright 2007, The Eastern Finance Association.

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    File URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j.1540-6288.2007.00173.x
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    Bibliographic Info

    Article provided by Eastern Finance Association in its journal Financial Review.

    Volume (Year): 42 (2007)
    Issue (Month): 2 (05)
    Pages: 303-317

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    Handle: RePEc:bla:finrev:v:42:y:2007:i:2:p:303-317

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    Web page: http://www.easternfinance.org/
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    Web: http://www.blackwellpublishing.com/subs.asp?ref=0732-8516

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    Cited by:
    1. Batuo Enowbi, Michael & Guidi, Francesco & Mlambo, Kupukile, 2009. "Testing the weak-form market efficiency and the day of the week effects of some African countries," MPRA Paper 19116, University Library of Munich, Germany.
    2. Takeshi Inoue & Shigeyuki Hamori, 2011. "An empirical analysis on the efficiency of the microfinance investment market," Economics Bulletin, AccessEcon, vol. 31(3), pages 2725-2735.
    3. Masih, Mansur & Alzahrani, Mohammed & Al-Titi, Omar, 2010. "Systematic risk and time scales: New evidence from an application of wavelet approach to the emerging Gulf stock markets," International Review of Financial Analysis, Elsevier, vol. 19(1), pages 10-18, January.
    4. Abul Shamsuddin & Jae H Kim, 2009. "Short-Horizon Return Predictability in International Equity Markets," Working Papers 2009.01, School of Economics, La Trobe University.
    5. Osamah AlKhazali, 2011. "Does infrequent trading make a difference on stock market efficiency?: Evidence from the Gulf Cooperation Council (GCC) countries," Studies in Economics and Finance, Emerald Group Publishing, vol. 28(2), pages 96-110, June.
    6. Jian Zhang & Lee W. Sanning & Sherrill Shaffer, 2010. "Market Efficiency Test in the VIX Futures Market," CAMA Working Papers 2010-08, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
    7. Lim, Kian-Ping & Brooks, Robert D. & Hinich, Melvin J., 2008. "Nonlinear serial dependence and the weak-form efficiency of Asian emerging stock markets," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 18(5), pages 527-544, December.
    8. Chiang, Shu-Mei & Lee, Yen-Hsien & Su, Hsin-Mei & Tzou, Yi-Pin, 2010. "Efficiency tests of foreign exchange markets for four Asian Countries," Research in International Business and Finance, Elsevier, vol. 24(3), pages 284-294, September.
    9. Bley, Jorg, 2011. "Are GCC stock markets predictable?," Emerging Markets Review, Elsevier, vol. 12(3), pages 217-237, September.

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