The Impact of Fraudulent False Information on Equity Values

There are two types of stock price manipulation examined in the theoretical literature: (1) insider trading, which involves private information that is true and (2) the public spreading of fraudulent false information. While there is a large empirical literature on insider trading, this is the first...

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Bibliographic Details
Main Author: Ullah, Saif (Author)
Contributors: Massoud, Nadia ; Scholnick, Barry
Format: Electronic Article
Language:English
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Interlibrary Loan:Interlibrary Loan for the Fachinformationsdienste (Specialized Information Services in Germany)
Published: 2014
In: Journal of business ethics
Year: 2014, Volume: 120, Issue: 2, Pages: 219-235
Further subjects:B Credible denial
B Market manipulation
B Front-running
B Event Study
B Abnormal returns and abnormal trading volume
B Price reversal
B False news
Online Access: Volltext (JSTOR)
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Summary:There are two types of stock price manipulation examined in the theoretical literature: (1) insider trading, which involves private information that is true and (2) the public spreading of fraudulent false information. While there is a large empirical literature on insider trading, this is the first empirical article to examine the impact of false, fraudulent public information on stock prices and trading volume. We find that such false information, even after being denied by a credible source such as the SEC, generates both abnormal returns and abnormal trading volume. We also find that the effects of the false information on security returns and volume can be persistent for at least 2 weeks. In addition, we show that perpetrators of false news attacks can make potentially large profits from such market manipulations.
ISSN:1573-0697
Contains:Enthalten in: Journal of business ethics
Persistent identifiers:DOI: 10.1007/s10551-013-1657-7