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Journal of Financial Economics Vol. 98 No. 3 2010

More insiders, more insider trading: Evidence from private-equity buyouts☆

Viral V. Acharya1,2,3; Timothy C. Johnson4

1 Centre for Economic Policy Research · 2 London Business School · 3 New York University · 4 University of Illinois Urbana-Champaign

Abstract

Prior theoretical research has found that, in the absence of regulation, a greater number of insiders leads to more insider trading. We show that optimal regulation features detection and punishment policies that become stricter as the number of insiders increases, reducing insider trading in equilibrium. We construct measures of the likelihood of insider activity prior to bid announcements of private-equity buyouts during the period 2000–2006 and relate these to the number of financing participants. Suspicious stock and options activity is associated with more equity participants, while suspicious bond and CDS activity is associated with more debt participants — consistent with models of limited competition among insiders but inconsistent with our model of optimal regulation.

DOI
10.1016/j.jfineco.2010.08.002
Volume
98
Issue
3
Pages
500-523
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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