Aik Nai ChiekTaufiq HassanShamsher Mohamad2024-12-312024-12-312015-09-2210.1177/0972150915601234https://dspace-cris.utar.edu.my/handle/123456789/9367This article examines the value-added phenomenon of Malaysian horizontal merger and acquisition activities (M&A) in the long run for the period 1994–2010. In this regard, this article used economic value-added (EVA) approach and cost-efficiency approach (stochastic frontier analysis (SFA)) to investigate synergistic benefits. The findings suggest that bidder firms experience no significant improvement in operating and financial efficiencies in the long run. Specifically, the operating performance of bidder firms deteriorated after the merger exercise, whereas the target firms had no significant improvement in operating performance over the same period. In summary, the findings suggest no synergistic gains from horizontal mergers in Malaysia. These findings imply that the long-run performance of firms in the horizontal mergers or acquisitions is driven by other motives rather than synergistic gains.journal-article