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L'impact des spams boursiers sur les volumes : Application de la méthodologie des études d’événement

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Author Info
Taoufik Bouraoui

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Abstract

This paper is dedicated to study the impact of the stock spams through the analysis of the variations of volumes. We use the methodology of the event studies on a sample of hundred ten firms of penny stock (firms with small size in the American market). Data cover the period of May 2002 to December 2007. The results show a meaningful and positive variations of the volumes essentially observed the first day of the event and to one least degree the following days. The stock spams resuscitated the activity on the market of penny stock.

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Paper provided by University of Paris West - Nanterre la Défense, EconomiX in its series EconomiX Working Papers with number 2008-11.

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Length: 26 pages
Date of creation: 2008
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Handle: RePEc:drm:wpaper:2008-11

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Related research
Keywords: stock spam; event studies; penny stock;

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This paper has been announced in the following NEP Reports: References listed on IDEAS
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  1. Brown, Stephen J. & Warner, Jerold B., 1985. "Using daily stock returns : The case of event studies," Journal of Financial Economics, Elsevier, vol. 14(1), pages 3-31, March. [Downloadable!] (restricted)
  2. Morse, Dale, 1980. "Asymmetrical Information in Securities Markets and Trading Volume," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 15(05), pages 1129-1148, December. [Downloadable!]
  3. S. Lardic & V. Mignon, 2002. "Analyse intraquotidienne de l'impact des "news" sur le marché boursier français," THEMA Working Papers 2002-25, THEMA (THéorie Economique, Modélisation et Applications), Université de Cergy-Pontoise. [Downloadable!]
  4. Corrado, Charles J. & Zivney, Terry L., 1992. "The Specification and Power of the Sign Test in Event Study Hypothesis Tests Using Daily Stock Returns," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 27(03), pages 465-478, September. [Downloadable!]
  5. Skinner, Douglas J., 1989. "Options markets and stock return volatility," Journal of Financial Economics, Elsevier, vol. 23(1), pages 61-78, June. [Downloadable!] (restricted)
  6. Ajinkya, Bipin B. & Jain, Prem C., 1989. "The behavior of daily stock market trading volume," Journal of Accounting and Economics, Elsevier, vol. 11(4), pages 331-359, November. [Downloadable!] (restricted)
  7. A. Craig MacKinlay, 1997. "Event Studies in Economics and Finance," Journal of Economic Literature, American Economic Association, vol. 35(1), pages 13-39, March. [Downloadable!] (restricted)
  8. Karpoff, Jonathan M., 1987. "The Relation between Price Changes and Trading Volume: A Survey," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 22(01), pages 109-126, March. [Downloadable!]
  9. Anat R. Admati, Paul Pfleiderer, 1988. "A Theory of Intraday Patterns: Volume and Price Variability," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 1(1), pages 3-40. [Downloadable!] (restricted)
  10. Blume, Lawrence & Easley, David & O'Hara, Maureen, 1994. " Market Statistics and Technical Analysis: The Role of Volume," Journal of Finance, American Finance Association, vol. 49(1), pages 153-81, March. [Downloadable!] (restricted)
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