Acquisitions, Overconfident Managers and Self‐attribution Bias

John Doukas () and Dimitris Petmezas

European Financial Management, 2007, vol. 13, issue 3, 531-577

Abstract: We examine whether acquisitions by overconfident managers generate superior abnormal returns and whether managerial overconfidence stems from self‐attribution. Self‐attribution bias suggests that overconfidence plays a greater role in higher order acquisition deals predicting lower wealth effects for higher order acquisition deals. Using two alternative measures of overconfidence (1) high order acquisition deals and (2) insider dealings we find evidence supporting the view that average stock returns are related to managerial overconfidence. Overconfident bidders realise lower announcement returns than rational bidders and exhibit poor long‐term performance. Second, we find that managerial overconfidence stems from self‐attribution bias. Specifically, we find that high‐order acquisitions (five or more deals within a three‐year period) are associated with lower wealth effects than low‐order acquisitions (first deals). That is, managers tend to credit the initial success to their own ability and therefore become overconfident and engage in more deals. In our analysis we control for endogeneity of the decision to engage in high‐order acquisitions and find evidence that does not support the self‐selection of excessive acquisitive firms. Our analysis is robust to the influence of merger waves, industry shocks, and macroeconomic conditions.

Date: 2007
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (93)

Downloads: (external link)
https://doi.org/10.1111/j.1468-036X.2007.00371.x

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bla:eufman:v:13:y:2007:i:3:p:531-577

Ordering information: This journal article can be ordered from
http://www.blackwell ... bs.asp?ref=1354-7798

Access Statistics for this article

European Financial Management is currently edited by John Doukas

More articles in European Financial Management from European Financial Management Association Contact information at EDIRC.
Bibliographic data for series maintained by Wiley Content Delivery ().