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Efficient Markets Hypothesis and the Emerging Capital Market in Sri Lanka: Evidence from the Colombo Stock Exchange – A Note

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  • Sarath P. Abeysekera

Abstract

The behaviour of stock prices on the Colombo Stock Exchange (CSE) is examined with a view to determine its consistency with the weak form of the Efficient Markets Hypothesis (EMH). Runs, Autocorrelation and Cointegration tests are applied to daily, weekly and monthly CSE index data for the period of January 1991–November 1996. Results of Runs, Correlation and Cointegration tests overwhelmingly reject the serial independence hypothesis, leading to the conclusion that the behaviour of stock prices in the Colombo Stock Exchange is not consistent with the weak form of the Efficient Markets Hypothesis. Tests of the‐day‐of‐the‐week‐effect, however, show that there is no evidence of such a phenomenon on the Colombo Stock Exchange stock prices. Results of the tests of the‐month‐of‐the‐year‐effect lead to the conclusion that CSE prices do not display any month‐specific behaviour.

Suggested Citation

  • Sarath P. Abeysekera, 2001. "Efficient Markets Hypothesis and the Emerging Capital Market in Sri Lanka: Evidence from the Colombo Stock Exchange – A Note," Journal of Business Finance & Accounting, Wiley Blackwell, vol. 28(1‐2), pages 249-261, January.
    • Handle: RePEc:bla:jbfnac:v:28:y:2001:i:1-2:p:249-261
    DOI: 10.1111/1468-5957.00373
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    1. Bogdan Dima & Laura Raisa MiloÅŸ, 2009. "Testing The Efficiency Market Hypothesis For The Romanian Stock Market," Annales Universitatis Apulensis Series Oeconomica, Faculty of Sciences, "1 Decembrie 1918" University, Alba Iulia, vol. 1(11), pages 1-41.
    2. Rahman, Md. Lutfur & Lee, Doowon & Shamsuddin, Abul, 2017. "Time-varying return predictability in South Asian equity markets," International Review of Economics & Finance, Elsevier, vol. 48(C), pages 179-200.
    3. Dinabandhu Bag & Saurabh Goel, 2023. "Weak Form of Call Auction Prices: Simulation Using Monte Carlo Variants," Capital Markets Review, Malaysian Finance Association, vol. 31(1), pages 59-71.
    4. Truong Dong Loc & Ger Lanjouw & Robert Lensink, 2010. "Stock-market efficiency in thin-trading markets: the case of the Vietnamese stock market," Applied Economics, Taylor & Francis Journals, vol. 42(27), pages 3519-3532.
    5. Stakić, Nikola & Jovancai, Ana & Kapor, Predrag, 2016. "The efficiency of the stock market in Serbia," Journal of Policy Modeling, Elsevier, vol. 38(1), pages 156-165.
    6. Azubuike Samuel Agbam, 2015. "Tests of Random Walk and Efficient Market Hypothesis in Developing Economies: Evidence from Nigerian Capital Market," International Journal of Management Sciences, Research Academy of Social Sciences, vol. 5(1), pages 1-53.
    7. Kelikume, Ikechukwu & Evans, Olaniyi & Iyoha, Faith, 2020. "Efficient Market Hypothesis in the Presence of Market Imperfections: Evidence from Selected Stock Markets in Africa," MPRA Paper 118200, University Library of Munich, Germany.
    8. Janet Jyothi Dsouza & T. Mallikarjunappa, 2015. "Does the Indian Stock Market Exhibit Random Walk?," Paradigm, , vol. 19(1), pages 1-20, June.
    9. Akber, Ushna & Muhammad, Nabeel, 2013. "Is Pakistan Stock Market moving towards Weak-form efficiency? Evidence from the Karachi Stock Exchange and the Random Walk Nature of free-float of shares of KSE 30 Index," MPRA Paper 49128, University Library of Munich, Germany.
    10. Aumeboonsuke, Vesarach & Dryver, Arthur L., 2014. "The importance of using a test of weak-form market efficiency that does not require investigating the data first," International Review of Economics & Finance, Elsevier, vol. 33(C), pages 350-357.
    11. Izz eddien N. Ananzeh, 2015. "Weak Form Efficiency of the Amman Stock Exchange: An Empirical Analysis (2000-2013)," International Journal of Business and Management, Canadian Center of Science and Education, vol. 11(1), pages 173-173, December.
    12. Abdul Aziz Farid Saymeh, 2013. "Empirical Testing for Weak Form Hypothesis of Emerging Capital Markets: A Comparative study of Jordan’s ASE and Turkey’s BORSA IST," International Journal of Empirical Finance, Research Academy of Social Sciences, vol. 1(2), pages 20-26.
    13. Jay Squalli, 2006. "A non-parametric assessment of weak-form efficiency in the UAE financial markets," Applied Financial Economics, Taylor & Francis Journals, vol. 16(18), pages 1365-1373.
    14. Shashitha Gimhani Jayakody, 2017. "The Impact of the Sri Lankan Civil War on the Stock Market Performances," International Journal of Economics and Financial Issues, Econjournals, vol. 7(1), pages 394-402.
    15. Amin Aminimehr & Ali Raoofi & Akbar Aminimehr & Amirhossein Aminimehr, 2022. "A Comprehensive Study of Market Prediction from Efficient Market Hypothesis up to Late Intelligent Market Prediction Approaches," Computational Economics, Springer;Society for Computational Economics, vol. 60(2), pages 781-815, August.
    16. Lakshman Alles, 2008. "The cost of downside protection and the time diversification issue in South Asian stock markets," Applied Financial Economics, Taylor & Francis Journals, vol. 18(10), pages 835-843.
    17. Subrata ROY, 2022. "Whether high frequency intraday data behave randomly: Evidence from NIFTY 50," Theoretical and Applied Economics, Asociatia Generala a Economistilor din Romania - AGER, vol. 0(2(631), S), pages 65-80, Summer.
    18. Muhammad Irfan & Maria Irfan, 2011. "Weak Form Efficiency of Pakistan Stock Market using Non-Parametric Approaches," Journal of Social and Development Sciences, AMH International, vol. 2(6), pages 249-257.
    19. Musarrat SHAMSHIR & Mirza Jawwad BAIG & Khalid MUSTAFA, 2018. "Evidence of random walk in Pakistan stock exchange: An emerging stock market study," Journal of Economics Library, KSP Journals, vol. 5(1), pages 103-117, March.
    20. Sami Al Kharusi & Robert O. Weagley, 2014. "Weak Form Market Efficiency During the 2008 Financial Crisis: Evidence from the Muscat Securities Market," The International Journal of Business and Finance Research, The Institute for Business and Finance Research, vol. 8(4), pages 27-42.
    21. Ushna Akber & Nabeel Muhammad, 2014. "Is Pakistan Stock Market Moving towards Weak-Form Efficiency? Evidence from The Karachi Stock Exchange and the Random Walk Nature of Free-Float of Shares of KSE 30 Index," Asian Economic and Financial Review, Asian Economic and Social Society, vol. 4(6), pages 808-836, June.
    22. Thushari Vidanage & O.G. Dayaratna-Banda, 2012. "Does Past Information Help Predict Future Price Movements in Emerging Capital Markets? Evidence from the Colombo Securities Exchange," South Asia Economic Journal, Institute of Policy Studies of Sri Lanka, vol. 13(2), pages 241-264, September.
    23. Subrata Roy, 2018. "Testing Random Walk and Market Efficiency: A Cross-Stock Market Analysis," Foreign Trade Review, , vol. 53(4), pages 225-238, November.

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