Weak Form Efficiency of the Nigerian Stock Market: An Empirical Analysis (1984 – 2009)
This paper examines the weak-form efficient markets hypothesis for the Nigerian stock market by testing for random walks in the monthly index returns over the period 1984-2009. The results of the non-parametric runs test show that index returns on the Nigerian Stock Exchange (NSE) display a predictable component, thus suggesting that traders can earn superior returns by employing trading rules. The statistically significant deviations from randomness are also suggestive of suboptimal allocation of investment capital within the economy. The findings, in general, contradict the weak-form of the efficient markets hypothesis. Finally, a range of policy strategies for improving the allocative capacity and quality of the information environment of the NSE are discussed.
Volume (Year): 2 (2012)
Issue (Month): 3 ()
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- Andrew W. Lo, A. Craig MacKinlay, 1988.
"Stock Market Prices do not Follow Random Walks: Evidence from a Simple Specification Test,"
Review of Financial Studies,
Society for Financial Studies, vol. 1(1), pages 41-66.
- Tom Doan, . "VRATIO: RATS procedure to implement variance ratio unit root test procedure," Statistical Software Components RTS00231, Boston College Department of Economics.
- Andrew W. Lo & A. Craig MacKinlay, 1987. "Stock Market Prices Do Not Follow Random Walks: Evidence From a Simple Specification Test," NBER Working Papers 2168, National Bureau of Economic Research, Inc.
- Alagidede, Paul, 2011. "Return behaviour in Africa's emerging equity markets," The Quarterly Review of Economics and Finance, Elsevier, vol. 51(2), pages 133-140, May.
- Shinichi Hirota & Shyam Sunder, 2002.
"Stock Market as a 'Beauty Contest': Investor Beliefs and Price Bubbles sans Dividend Anchors,"
Yale School of Management Working Papers
ysm2, Yale School of Management.
- Shinichi Hirota & Shyam NMI Sunder, 2002. "Stock Market as a 'Beauty Contest': Investor Beliefs and Price Bubbles sans Dividend Anchors," Yale School of Management Working Papers ysm271, Yale School of Management.
- R. Olowe, 1999. "Weak Form Efficiency of the Nigerian Stock Market: Further Evidence," African Development Review, African Development Bank, vol. 11(1), pages 54-68.
- Lagoarde-Segot, Thomas & Lucey, Brian M., 2008. "Efficiency in emerging markets--Evidence from the MENA region," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 18(1), pages 94-105, February.
- Fifield, S G M & Power, D M & Sinclair, C D, 2002. "Macroeconomic Factors and Share Returns: An Analysis Using Emerging Market Data," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 7(1), pages 51-62, January.
- M. Magnusson & B. Wydick, 2002. "How Efficient are Africa's Emerging Stock Markets?," Journal of Development Studies, Taylor & Francis Journals, vol. 38(4), pages 141-156.
- Jensen, Michael C., 1978. "Some anomalous evidence regarding market efficiency," Journal of Financial Economics, Elsevier, vol. 6(2-3), pages 95-101.
- Keith Jefferis & Graham Smith, 2005. "The Changing Efficiency Of African Stock Markets," South African Journal of Economics, Economic Society of South Africa, vol. 73(1), pages 54-67, 03.
- Ojah, Kalu & Karemera, David, 1999. "Random Walks and Market Efficiency Tests of Latin American Emerging Equity Markets: A Revisit," The Financial Review, Eastern Finance Association, vol. 34(2), pages 57-72, May.
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