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Regulating Insider Trading When Investment Matters

  • Luis Angel Medrano
  • Xavier Vives

We provide a general framework for analyzing the effects of insider trading on real investment and welfare as well as the consequences of different regulatory policies in a model where all traders are rational expected-utility maximizers and aware of their position in the market. We find that: with costly information acquisition, an "abstain-or-disclose" rule tends to be optimal; with free information acquisition, laissez-faire is better. This suggests enforcing an abstain-or-disclose rule with a high standard of proof for inside information. Our approach also uncovers the pitfalls of welfare analysis in the noise-trader model.

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Article provided by Springer in its journal European Finance Review.

Volume (Year): 8 (2004)
Issue (Month): 2 ()
Pages: 199-277

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Handle: RePEc:kap:eurfin:v:8:y:2004:i:2:p:199-277
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  1. Kyle, Albert S, 1989. "Informed Speculation with Imperfect Competition," Review of Economic Studies, Wiley Blackwell, vol. 56(3), pages 317-55, July.
  2. Bernhardt, Dan & Hughson, Eric, 2002. "Intraday trade in dealership markets," European Economic Review, Elsevier, vol. 46(9), pages 1697-1732, October.
  3. Jean-Pierre DANTHINE & Serge MORESI, 1990. "Volatility, Information, and Noise Trading," Cahiers de Recherches Economiques du Département d'Econométrie et d'Economie politique (DEEP) 9015, Université de Lausanne, Faculté des HEC, DEEP.
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  9. Bray, Margaret, 1985. "Rational Expectations, Information and Asset Markets: An Introduction," Oxford Economic Papers, Oxford University Press, vol. 37(2), pages 161-95, June.
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  14. Repullo, R., 1994. "Some Remarks on Leland's Model of Insider Trading," Papers 9425, Centro de Estudios Monetarios Y Financieros-.
  15. Holmstrom, Bengt & Tirole, Jean, 1993. "Market Liquidity and Performance Monitoring," Journal of Political Economy, University of Chicago Press, vol. 101(4), pages 678-709, August.
  16. Bhattacharya, Utpal & Spiegel, Matthew, 1991. "Insiders, Outsiders, and Market Breakdowns," Review of Financial Studies, Society for Financial Studies, vol. 4(2), pages 255-82.
  17. 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.
  18. Douglas W. Diamond & Philip H. Dybvig, 2000. "Bank runs, deposit insurance, and liquidity," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Win, pages 14-23.
  19. Demsetz, Harold, 1986. "Corporate Control, Insider Trading, and Rates of Return," American Economic Review, American Economic Association, vol. 76(2), pages 313-16, May.
  20. Khanna, Naveen & Slezak, Steve L & Bradley, Michael, 1994. "Insider Trading, Outside Search, and Resource Allocation: Why Firms and Society May Disagree on Insider Trading Restrictions," Review of Financial Studies, Society for Financial Studies, vol. 7(3), pages 575-608.
  21. Yosha Oved, 1995. "Information Disclosure Costs and the Choice of Financing Source," Journal of Financial Intermediation, Elsevier, vol. 4(1), pages 3-20, January.
  22. Spiegel, Matthew & Subrahmanyam, Avanidhar, 1992. "Informed Speculation and Hedging in a Noncompetitive Securities Market," Review of Financial Studies, Society for Financial Studies, vol. 5(2), pages 307-29.
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