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Information Sales and Insider Trading with Long-lived Information

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Author Info
Giovanni Cespa () (University of Salerno, CSEF and CEPR)

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Abstract

Fundamental information resembles in many respects a durable good. Hence, the effects of its incorporation into stock prices depend on who is the agent controlling its flow. Similarly to a durable goods monopolist, a monopolistic analyst selling information intertemporally competes against herself. This forces her to partially relinquish control over the information flow to traders. Conversely, an insider solves the intertemporal competition problem through vertical integration, thus exerting a tighter control over the flow of information. Comparing market patterns I show that a dynamic market where information is provided by an analyst is thicker and more informative than one where an insider trades.

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Publisher Info
Paper provided by Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy in its series CSEF Working Papers with number 174.

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Date of creation: 01 Jan 2007
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Publication status: Published in Journal of Finance, 2008, 63 (2), pages 639-672
Handle: RePEc:sef:csefwp:174

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Related research
Keywords: Information Sales; Analysts; Insider Trading; Durable Goods Monopolist.;

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Find related papers by JEL classification:
G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
G12 - Financial Economics - - General Financial Markets - - - Asset Pricing
G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies
L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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    Other versions:
  2. 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.
    Other versions:
  3. Luis Angel Medrano & Xavier Vives, 2004. "Regulating Insider Trading When Investment Matters," Review of Finance, Springer, vol. 8(2), pages 199-277. [Downloadable!]
    Other versions:
  4. Rochet, Jean-Charles & Vila, Jean-Luc, 1994. "Insider Trading without Normality," Review of Economic Studies, Blackwell Publishing, vol. 61(1), pages 131-52, January. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Cespa, Giovanni & Foucault, Thierry, 2008. "Insiders-Outsiders, Transparency and the Value of the Ticker," CEPR Discussion Papers 6794, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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