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Market reaction to takeover rumour in Internet Discussion Sites
Author(s) -
Clarkson Peter M.,
Joyce Daniel,
Tutticci Irene
Publication year - 2006
Publication title -
accounting and finance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.645
H-Index - 49
eISSN - 1467-629X
pISSN - 0810-5391
DOI - 10.1111/j.1467-629x.2006.00160.x
Subject(s) - credibility , the internet , interval (graph theory) , business , financial economics , economics , monetary economics , computer science , political science , mathematics , law , world wide web , combinatorics
We examine the market reaction to takeover rumour postings in the Hotcopper Internet Discussion Site (IDS). Results from the interday analysis show abnormal returns and trading volumes on the day before and the day of the posting. Results of the intraday analysis show abnormal returns and trading volumes during the 10 min posting interval and abnormal trading volume during the 10 min interval immediately preceding it. Sensitivity analyses indicate that the results are robust to concerns regarding potential confounds, credibility and bid–ask spread bias. Taken together, these findings are consistent with the market reacting to the posting of takeover rumours in IDS.