Do more mergers and acquisitions create value for shareholders?

Shaomeng Li, Guy Liu, Andros Gregoriou

Research output: Contribution to journalArticle

Abstract

How does an investor value the announcement of new business integration? The history of acquirer’s acquisition may matter for investors. Existing research are divided to the positive or negative answer to the question. Based on the global evidence of 24,263 acquisitions across 81 countries over 19 years, this paper argues that the current contradictory views have failed to take into account the time interval between acquisitions. This is because the wavelength of merger frequency can change the investors’ expectations of new business integration and so investment returns. With control of the time interval of a new merger we discover that more mergers generate lower abnormal returns. This finding extends our understanding of the value perception of investors on a merger announcement that can be affected not only by merger numbers but also by their time distribution.

Original languageEnglish
JournalReview of Quantitative Finance and Accounting
DOIs
Publication statusPublished - 8 Jul 2020

Bibliographical note

This is a post-peer-review, pre-copyedit version of an article published in Review of Quantitative Finance and Accounting. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11156-020-00908-7

Keywords

  • Abnormal return
  • Frequent acquisitions
  • Management Hubris
  • Merger Announcement
  • Merger and acquisition

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