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Strategic Insider Trading with Imperfect Information: A Trading Volume Analysis

Author

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  • Andrea Marcello Buffa

    () (University of Turin)

Abstract

A model of insider trading is used to analyze the behaviour of trading volume in financial markets characterized by asymmetric information. This model extends the one in Bhattacharya and Nicodano (2001) by introducing competition among informed traders and imperfection of their private information. Contrary to the broad implications of adverse selection models and according to some empirical studies, this paper shows that trading volume is higher when the insiders are active in the market. A higher level of outsiders’ risky investment, due to an improved “risk sharing†among them, leads to a higher level of trading.

Suggested Citation

  • Andrea Marcello Buffa, 2004. "Strategic Insider Trading with Imperfect Information: A Trading Volume Analysis," Rivista di Politica Economica, SIPI Spa, vol. 94(6), pages 101-143, November-.
  • Handle: RePEc:rpo:ripoec:v:94:y:2004:i:6:p:101-143
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    References listed on IDEAS

    as
    1. Sudipto Bhattacharya & Giovanna Nicodano, 2001. "Insider Trading, Investment, and Liquidity: A Welfare Analysis," Journal of Finance, American Finance Association, vol. 56(3), pages 1141-1156, June.
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    More about this item

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games

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