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Does Corporate Performance Improve After Mergers?


  • Paul M. Healy
  • Krishna G. Palepu
  • Richard C. Rubak


We examine the post-acquisition operating performance of merged firms using a sample of the 50 largest mergers between U.S. public industrial firms completed in the period 1979 to 1983. The results indicate that merged firms have significant improvement in asset productivity relative to their industries after the merger, leading to higher post-merger operating cash flow returns. Sample firms maintain their capital expenditure and R&D rates relative to their industries after the merger, indicating that merged firms do not reduce their long-term investments. There is a strong positive relation between postmerger increases in operating cash flows and abnormal stock returns at merger announcements, indicating that expectations of economic improvements underlie the equity revaluations of the merging firms.

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  • Paul M. Healy & Krishna G. Palepu & Richard C. Rubak, 1990. "Does Corporate Performance Improve After Mergers?," NBER Working Papers 3348, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:3348
    Note: ME PE

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    References listed on IDEAS

    1. Bradley, Michael & Desai, Anand & Kim, E. Han, 1988. "Synergistic gains from corporate acquisitions and their division between the stockholders of target and acquiring firms," Journal of Financial Economics, Elsevier, vol. 21(1), pages 3-40, May.
    2. Andrei Shleifer & Lawrence H. Summers, 1988. "Breach of Trust in Hostile Takeovers," NBER Chapters,in: Corporate Takeovers: Causes and Consequences, pages 33-68 National Bureau of Economic Research, Inc.
    3. Bradley, Michael & Desai, Anand & Kim, E. Han, 1983. "The rationale behind interfirm tender offers : Information or synergy?," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 183-206, April.
    4. Smith, Abbie J., 1990. "Corporate ownership structure and performance *1: The case of management buyouts," Journal of Financial Economics, Elsevier, vol. 27(1), pages 143-164, September.
    5. Asquith, K Paul & Kim, E Han, 1982. " The Impact of Merger Bids on the Participating Firms' Security Holders," Journal of Finance, American Finance Association, vol. 37(5), pages 1209-1228, December.
    6. Dodd, Peter & Ruback, Richard, 1977. "Tender offers and stockholder returns : An empirical analysis," Journal of Financial Economics, Elsevier, vol. 5(3), pages 351-373, December.
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    Cited by:

    1. Chang, Shao-Chi & Chen, Sheng-Syan & Lai, Jung-Ho, 2008. "The effect of alliance experience and intellectual capital on the value creation of international strategic alliances," Omega, Elsevier, vol. 36(2), pages 298-316, April.
    2. Sang V Nguyen, 1998. "The Manufacturing Plant Ownership Change Database: Its Construction And Usefulness," Working Papers 98-16, Center for Economic Studies, U.S. Census Bureau.
    3. Aharon, David Y. & Gavious, Ilanit & Yosef, Rami, 2010. "Stock market bubble effects on mergers and acquisitions," The Quarterly Review of Economics and Finance, Elsevier, vol. 50(4), pages 456-470, November.
    4. Harold M. Somers, 1991. "Leverage: The Tax Incentives," UCLA Economics Working Papers 625, UCLA Department of Economics.

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