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Market Efficiency, Time-Varying Volatility and Equity Returns in Bangladesh Stock Market

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  • M. Kabir Hassan

    (University of New Orleans)

  • Anisul M. Islam

    (University of Houston-Downtown)

  • Syed Basher

    (York University)

Abstract

This paper empirically examines the issue of market efficiency and time- varying risk return relationship for Bangladesh, an emerging equity market in South Asia. The study utilizes a unique data set of daily stock prices and returns compiled by the authors which was not utilized in any previous study. The Dhaka Stock Exchange (DSE) equity returns show positive skewness, excess kurtosis and deviation from normality. The returns display significant serial correlation, implying stock market inefficiency. The results also show a significant relationship between conditional volatility and the stock returns, but the risk- return parameter is negative and statistically significant. While this result is not consistent with the portfolio theory, it is possible theoretically in emerging markets as investors may not demand higher risk premia if they are better able to bear risk at times of particular volatility (Glosten, Jagannathan and Runkle, 1993). While circuit breaker overall did not have any impact on stock volatility, the imposition of the lock-in period has contributed to the price discovery mechanism by reverting an overall negative risk-return time-varying relationship into a positive one. As a policy to improve the capital market efficiency, the timely disclosure and dissemination of information to the shareholders and investors on the performance of listed companies should be emphasized.

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Bibliographic Info

Paper provided by EconWPA in its series Finance with number 0310015.

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Length: 25 pages
Date of creation: 16 Oct 2003
Date of revision:
Handle: RePEc:wpa:wuwpfi:0310015

Note: Type of Document - pdf; prepared on win98; pages: 25
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Web page: http://128.118.178.162

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  8. Lawrence R. Glosten & Ravi Jagannathan & David E. Runkle, 1993. "On the relation between the expected value and the volatility of the nominal excess return on stocks," Staff Report 157, Federal Reserve Bank of Minneapolis.
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Cited by:
  1. Hunjra, Ahmed Imran & Azam, Muhammad & Niazi, Ghulam Shabbir Khan & Butt, Babar Zaheer & Rehman, Kashif-Ur- & Azam, Rauf i, 2010. "Risk and return relationship in stock market and commodity prices: a comprehensive study of Pakistani markets," MPRA Paper 40662, University Library of Munich, Germany.

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