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On the validity of the weak-form efficient markets hypothesis applied to the London stock exchange: comment

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  • Alexandros Milionis
  • Demetrios Moschos

Abstract

The empirical work and interpretation of the results of Al-Loughani and Chappell (1997) is commented upon. On the basis of the reported results, and contrary to the authors' conclusion, it is argued that although the random walk hypothesis is rejected, the weak-form market efficiency hypothesis (WFME), for the London stock exchange cannot be rejected. Some further comments on WFME in the presence of conditional heteroscedasticity are made.

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  • Alexandros Milionis & Demetrios Moschos, 2000. "On the validity of the weak-form efficient markets hypothesis applied to the London stock exchange: comment," Applied Economics Letters, Taylor & Francis Journals, vol. 7(7), pages 419-421.
    • Handle: RePEc:taf:apeclt:v:7:y:2000:i:7:p:419-421
    DOI: 10.1080/135048500351087
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    Cited by:

    1. Alagidede, Paul & Panagiotidis, Theodore, 2009. "Modelling stock returns in Africa's emerging equity markets," International Review of Financial Analysis, Elsevier, vol. 18(1-2), pages 1-11, March.
    2. Ashok Chanabasangouda Patil & Shailesh Rastogi, 2019. "Time-Varying Price–Volume Relationship and Adaptive Market Efficiency: A Survey of the Empirical Literature," JRFM, MDPI, vol. 12(2), pages 1-18, June.
    3. Theodore Panagiotidis, 2010. "Market efficiency and the Euro: the case of the Athens stock exchange," Empirica, Springer;Austrian Institute for Economic Research;Austrian Economic Association, vol. 37(3), pages 237-251, July.
    4. Kasai, Katsuya, 2012. "Estimation of the Day of the Week Effect on Stock Market Volatility in the U.S. Manufacturing Sector using GARCH and EGARCH models," MPRA Paper 52240, University Library of Munich, Germany.
    5. Milionis, Alexandros E., 2007. "Efficient capital markets: A statistical definition and comments," Statistics & Probability Letters, Elsevier, vol. 77(6), pages 607-613, March.
    6. Alexandros E. Milionis & Dimitra K. Patsouri, 2011. "A conditional CAPM; implications for the estimation of systematic risk," Working Papers 131, Bank of Greece.
    7. Alexandros E. Milionis, 2019. "A simple return generating model in discrete time; implications for market efficiency testing," Working Papers 259, Bank of Greece.
    8. Theodore Panagiotidis, 2005. "Market capitalization and efficiency. Does it matter? Evidence from the Athens Stock Exchange," Applied Financial Economics, Taylor & Francis Journals, vol. 15(10), pages 707-713.
    9. Khan, Walayet & Vieito, João Paulo, 2012. "Stock exchange mergers and weak form of market efficiency: The case of Euronext Lisbon," International Review of Economics & Finance, Elsevier, vol. 22(1), pages 173-189.

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