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The Effects of Automation on Liquidity, Volatility, Stock Returns and Efficiency: Evidence from the Tunisian Stock Market

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  • Sioud Olfa Benouda

    (Department of Finance, Institut des Hautes Etudes Commerciales de Carthage)

  • Mezzez Hmaied Dorra

    (Department of Finance, Institut des Hautes Etudes Commerciales de Carthage)

Abstract

This paper examines the effects of automation on the liquidity, volatility, returns and efficiency of shares traded on the Tunisian stock exchange (TSE). By the end of 1996, stocks listed on the TSE were transferred gradually from manual trading to automated trading. The TSE operates a continuous market for frequently traded securities and a 'call-auction’ for infrequently traded securities. While our results show an improvement in the liquidity of shares following the automation, returns decreased and no significant effects on volatility or efficiency were detected.

Suggested Citation

  • Sioud Olfa Benouda & Mezzez Hmaied Dorra, 2003. "The Effects of Automation on Liquidity, Volatility, Stock Returns and Efficiency: Evidence from the Tunisian Stock Market," Review of Middle East Economics and Finance, De Gruyter, vol. 1(2), pages 43-56, August.
    • Handle: RePEc:bpj:rmeecf:v:1:y:2003:i:2:n:3
    DOI: 10.2202/1475-3693.1008
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    References listed on IDEAS

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    Cited by:

    1. Nadia Loukil & Mohamed Bechir Zayani & Abdelwahed Omri, 2010. "Impact of liquidity on stock returns: an empirical investigation of the Tunisian stock market," Macroeconomics and Finance in Emerging Market Economies, Taylor & Francis Journals, vol. 3(2), pages 261-283.
    2. Mensah, Justice T. & Pomaa-Berko, Maame & Adom, Philip Kofi, 2012. "Does Automation Improve Stock Market Efficiency? Evidence from Ghana," MPRA Paper 43642, University Library of Munich, Germany.
    3. Amira Akl Ahmed, 2014. "Evolving and relative efficiency of MENA stock markets: evidence from rolling joint variance ratio tests," Ensayos Revista de Economia, Universidad Autonoma de Nuevo Leon, Facultad de Economia, vol. 0(1), pages 91-126, May.

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