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Insider Trading, Traded Volume and Returns

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  • Fabio C. Bagliano

    ()
    (Department of Economics and Public Finance "G. Prato", University of Torino)

  • Carlo A. Favero

    ()
    (Innocenzo Gasparini Institute for Economic Research, Bocconi University)

  • Giovanna Nicodano

    ()
    (Department of Economics and Public Finance "G. Prato", University of Torino)

Abstract

Several models predict that both market liquidity and trading volume generated by less informed traders do not increase when there is insider trading. Available empirical evidence is mixed and still relatively small, because of the inherent di¢ culty to identify insider trading events. Our econometric work, based on 19 suspect insider trading events drawn from the non-public ?file of the Italian supervisory authority, provides further insight on these key implications of stock market models. The second purpose of this paper is to assess whether insider trading changes the distribution of volume and returns in a way that can be used by supervisory authorities in order to detect its presence through statistical methods.

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File URL: http://web.econ.unito.it/prato/papers/n26.pdf
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Bibliographic Info

Paper provided by Former Department of Economics and Public Finance "G. Prato", University of Torino in its series Working papers with number 26.

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Length: 26 pages
Date of creation: Oct 2011
Date of revision:
Handle: RePEc:tur:wpaper:26

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Keywords: asymmetric information; insider trading; abnormal returns; traded volume;

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References

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  1. Jarrell, Gregg A & Poulsen, Annette B, 1989. "Stock Trading before the Announcement of Tender Offers: Insider Trading or Market Anticipation?," Journal of Law, Economics and Organization, Oxford University Press, vol. 5(2), pages 225-48, Fall.
  2. John Y. Campbell & Sanford J. Grossman & Jiang Wang, 1992. "Trading Volume and Serial Correlation in Stock Returns," NBER Working Papers 4193, National Bureau of Economic Research, Inc.
  3. Sudipto Bhattacharya, 2001. "Insider Trading, Investment, and Liquidity: A Welfare Analysis," Journal of Finance, American Finance Association, vol. 56(3), pages 1141-1156, 06.
  4. Foster, F Douglas & Viswanathan, S, 1996. " Strategic Trading When Agents Forecast the Forecasts of Others," Journal of Finance, American Finance Association, vol. 51(4), pages 1437-78, September.
  5. Seyhun, H Nejat, 1988. "The Information Content of Aggregate Insider Trading," The Journal of Business, University of Chicago Press, vol. 61(1), pages 1-24, January.
  6. Bhattacharya, Utpal & Daouk, Hazem & Jorgenson, Brian & Kehr, Carl-Heinrich, 2000. "When an event is not an event: the curious case of an emerging market," Journal of Financial Economics, Elsevier, vol. 55(1), pages 69-101, January.
  7. B. Espen Eckbo & David C. Smith, 1998. "The Conditional Performance of Insider Trades," Journal of Finance, American Finance Association, vol. 53(2), pages 467-498, 04.
  8. Leland, Hayne E, 1992. "Insider Trading: Should It Be Prohibited?," Journal of Political Economy, University of Chicago Press, vol. 100(4), pages 859-87, August.
  9. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
  10. Fishe, Raymond P. H. & Robe, Michel A., 2004. "The impact of illegal insider trading in dealer and specialist markets: evidence from a natural experiment," Journal of Financial Economics, Elsevier, vol. 71(3), pages 461-488, March.
  11. Andrea Buffa & Giovanna Nicodano, 2006. "Should Insider Trading be Prohibited when Share Repurchases are Allowed?," Carlo Alberto Notebooks 16, Collegio Carlo Alberto.
  12. Kabir, Rezaul & Vermaelen, Theo, 1996. "Insider trading restrictions and the stock market: Evidence from the Amsterdam Stock Exchange," European Economic Review, Elsevier, vol. 40(8), pages 1591-1603, November.
  13. Leslie A. Jeng & Andrew Metrick & Richard Zeckhauser, 2003. "Estimating the Returns to Insider Trading: A Performance-Evaluation Perspective," The Review of Economics and Statistics, MIT Press, vol. 85(2), pages 453-471, May.
  14. Kerry Back & C. Henry Cao & Gregory A. Willard, 2000. "Imperfect Competition among Informed Traders," Journal of Finance, American Finance Association, vol. 55(5), pages 2117-2155, October.
  15. Cornell, Bradford & Sirri, Erik R, 1992. " The Reaction of Investors and Stock Prices to Insider Trading," Journal of Finance, American Finance Association, vol. 47(3), pages 1031-59, July.
  16. Wang, Jiang, 1994. "A Model of Competitive Stock Trading Volume," Journal of Political Economy, University of Chicago Press, vol. 102(1), pages 127-68, February.
  17. Jain, Prem C, 1988. "Response of Hourly Stock Prices and Trading Volume to Economic News," The Journal of Business, University of Chicago Press, vol. 61(2), pages 219-31, April.
  18. Huddart, Steven & Hughes, John S & Levine, Carolyn B, 2001. "Public Disclosure and Dissimulation of Insider Trades," Econometrica, Econometric Society, vol. 69(3), pages 665-81, May.
  19. Utpal Bhattacharya & Hazem Daouk, 2002. "The World Price of Insider Trading," Journal of Finance, American Finance Association, vol. 57(1), pages 75-108, 02.
  20. Meulbroek, Lisa K, 1992. " An Empirical Analysis of Illegal Insider Trading," Journal of Finance, American Finance Association, vol. 47(5), pages 1661-99, December.
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Citations

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Cited by:
  1. Giovanni Cespa, 2007. "Information Sales and Insider Trading with Long-lived Information," CSEF Working Papers 174, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
  2. Nadia Linciano, 2003. "The Effectiveness of Insider Trading Regulation in Italy. Evidence from Stock-Price Run-Ups Around Announcements of Corporate Control Transactions," European Journal of Law and Economics, Springer, vol. 16(2), pages 199-218, September.
  3. Giovanni Cespa, 2007. "Information Sales and Insider Trading with Long-lived Information," Working Papers 613, Queen Mary, University of London, School of Economics and Finance.

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