Do mega-mergers create value? The acquisition experience and mega-deal outcomes

Existing literature shows that mega-M&A deals valued over $500mil end up destroying the shareholder value of acquirers on a significant scale. Our paper considers mega-deal as a dependent event and examines the role of acquirer's previous acquisition experience playing in the outcome of mega-deals. We find that mega-deals conducted by firms with a high level of acquisition experience, i.e. a firm completed at least 12 transactions before, are more likely to be completed. In addition, more experienced acquirers of mega-deals generate positive abnormal stock returns for shareholders in both short-run and long-run, with a dollar value gain of $50.6 million around deal announcement. We also find that more experienced acquirers are better at managing the post-acquisition integration process and enjoy a significant improvement in operating performance.