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Should Insider Trading be Prohibited when Share Repurchases are Allowed?

Listed author(s):
  • Andrea Buffa
  • Giovanna Nicodano

This paper considers share repurchases as the way long-term shareholders preserve their ability to use corporate information for speculative purposes when insider trading regulation is enforced. This use of corporate information increases the adverse selection losses of short-term shareholders. Thus, buy-back programs reduce their incentive to invest in stocks that back the most productive technology, leading to a socially inefficient equilibrium. It follows that insider trading should not be banned when share repurchases are allowed.

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File URL: http://www.carloalberto.org/assets/working-papers/no.16.pdf
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Paper provided by Collegio Carlo Alberto in its series Carlo Alberto Notebooks with number 16.

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Length: 29 pages
Date of creation: 2006
Handle: RePEc:cca:wpaper:16
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  3. Bernhardt, Dan & Hollifield, Burton & Hughson, Eric, 1993. "Investment and Insider Trading," Working Papers 830, California Institute of Technology, Division of the Humanities and Social Sciences.
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  15. Ikenberry, David & Lakonishok, Josef & Vermaelen, Theo, 1995. "Market underreaction to open market share repurchases," Journal of Financial Economics, Elsevier, vol. 39(2-3), pages 181-208.
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  18. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-1335, November.
  19. Diamond, Douglas W, 1985. " Optimal Release of Information by Firms," Journal of Finance, American Finance Association, vol. 40(4), pages 1071-1094, September.
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  21. Admati, Anat R. & Pfleiderer, Paul, 1986. "A monopolistic market for information," Journal of Economic Theory, Elsevier, vol. 39(2), pages 400-438, August.
  22. Giovanna Nicodano & Sudipto Bhattacharya, 1999. "Insider Trading, Investment and Liquidity: A Welfare Analysis," FMG Discussion Papers dp334, Financial Markets Group.
  23. Maug, Ernst, 2002. "Insider trading legislation and corporate governance," European Economic Review, Elsevier, vol. 46(9), pages 1569-1597, October.
  24. Brockman, Paul & Chung, Dennis Y., 2001. "Managerial timing and corporate liquidity: *1: evidence from actual share repurchases," Journal of Financial Economics, Elsevier, vol. 61(3), pages 417-448, September.
  25. Michael J. Fishman & Kathleen M. Hagerty, 1992. "Insider Trading and the Efficiency of Stock Prices," RAND Journal of Economics, The RAND Corporation, vol. 23(1), pages 106-122, Spring.
  26. John, Kose & Narayanan, Ranga, 1997. "Market Manipulation and the Role of Insider Trading Regulations," The Journal of Business, University of Chicago Press, vol. 70(2), pages 217-247, April.
  27. Holden, Craig W & Subrahmanyam, Avanidhar, 1992. " Long-Lived Private Information and Imperfect Competition," Journal of Finance, American Finance Association, vol. 47(1), pages 247-270, March.
  28. Admati, Anat R & Pfleiderer, Paul, 1988. "Selling and Trading on Information in Financial Markets," American Economic Review, American Economic Association, vol. 78(2), pages 96-103, May.
  29. Dittmar, Amy K, 2000. "Why Do Firms Repurchase Stock?," The Journal of Business, University of Chicago Press, vol. 73(3), pages 331-355, July.
  30. Anat R. Admati, Paul Pfleiderer, 1988. "A Theory of Intraday Patterns: Volume and Price Variability," Review of Financial Studies, Society for Financial Studies, vol. 1(1), pages 3-40.
  31. Bhattacharya, Sudipto & Nicodano, Giovanna, 1999. "Insider Trading, Investment and Liquidity," CEPR Discussion Papers 2251, C.E.P.R. Discussion Papers.
  32. Allen, Franklin, 1990. "The market for information and the origin of financial intermediation," Journal of Financial Intermediation, Elsevier, vol. 1(1), pages 3-30, March.
  33. Michael Manove, 1989. "The Harm from Insider Trading and Informed Speculation," The Quarterly Journal of Economics, Oxford University Press, vol. 104(4), pages 823-845.
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