Stockholder gains from focusing versus diversifying bank mergers

Abstract This paper shows bank mergers that enhance value upon announcement can be distinguished from those that do not create value. I classify mergers of banking firms according to activity and geographic similarity (focus) or dissimilarity (diversification), and examine the abnormal returns to each group as a result of the merger announcement. Mergers that focus both activity and geography enhance stockholder value by 3.0% while the other types do not create value. Analysis reveals that abnormal returns upon merger announcement increase in relative size of target to bidder, but decrease in the pre-merger performance of targets.

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