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Legal insider trading and market efficiency

  • Aktas, Nihat
  • de Bodt, Eric
  • Van Oppens, Hervé
Registered author(s):

    Does legal insider trading contribute to market efficiency? Using refinements proposed in the recent microstructure literature, we analyzed the information content of legal insider trading. We used data on 2110 companies subject to 59,244 aggregated daily insider trades between January 1995 and the end of September 1999. Our main finding is that, even though financial markets do not respond strongly in terms of abnormal returns to insider trading activities, the significant change in price sensitivity to relative order imbalance due to abnormal insider trades reveals that price discovery is hastened on insider trading days.

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    File URL: http://www.sciencedirect.com/science/article/B6VCY-4R8MDP6-C/1/69aa858500ecb713b82e51c420bb14e8
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    Article provided by Elsevier in its journal Journal of Banking & Finance.

    Volume (Year): 32 (2008)
    Issue (Month): 7 (July)
    Pages: 1379-1392

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    Handle: RePEc:eee:jbfina:v:32:y:2008:i:7:p:1379-1392
    Contact details of provider: Web page: http://www.elsevier.com/locate/jbf

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