Investigating the efficiency of financial markets: Empirical evidence from MENA countries

  • Received February 8, 2021;
    Accepted March 12, 2021;
    Published March 15, 2021
  • Author(s)
  • DOI
  • Article Info
    Volume 18 2021, Issue #1, pp. 250-259

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License

The market efficiency hypothesis has become an important concept for all investors looking to own internationally diversified portfolios, which coincides with an increase in investment flows between all countries, both developed and undeveloped. This study was aimed at investigating the efficiency of a group of Arab stock markets located in the Middle East and North Africa (MENA) region according to the Random Walk Hypotheses (RWH) at weak form. The study covered the markets of Jordan, Egypt, Saudi Arabia, UAE, Bahrain, and Oman.
The empirical results of all tests used in this study rejected the RWH at a weak form for all markets through all tests applied – Unit root test, Variance Ratio Test, and Run Test.
The result of this study contradicts the results of many studies conducted on developed and emerging markets. This can be a good indication of the ineffectiveness of the reforms that have been adopted by responsible bodies on these markets.
Based on this result, all efforts made to expand and deepen these markets should be intensified by improving liquidity, transparency, enhancing investment culture in these countries; supporting legislative and regulatory reforms to attract investment, and developing the financial sector in these markets as a whole.

This paper is supported by the Deanship of Scientific Research and Graduate Studies at Philadelphia University in Jordan.

view full abstract hide full abstract
    • Table 1. Descriptive statistics
    • Table 2. Unit root test results
    • Table 3. Variance ratio (VR) test results
    • Table 4. Runs test results
    • Conceptualization
      Izzeddien N. Ananzeh
    • Formal Analysis
      Izzeddien N. Ananzeh
    • Data curation
      Izzeddien N. Ananzeh
    • Investigation
      Izzeddien N. Ananzeh
    • Project administration
      Izzeddien N. Ananzeh
    • Resources
      Izzeddien N. Ananzeh
    • Supervision
      Izzeddien N. Ananzeh
    • Validation
      Izzeddien N. Ananzeh
    • Visualization
      Izzeddien N. Ananzeh
    • Writing – original draft
      Izzeddien N. Ananzeh
    • Writing – review & editing
      Izzeddien N. Ananzeh