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The success of divestitures in merger enforcement: Evidence from the J&J-Pfizer transaction

Listed author(s):
  • Tenn, Steven
  • Yun, John M.
Registered author(s):

    Despite being a widely used tool in merger enforcement, there have been few studies of whether antitrust divestitures are successful. We help fill this void by conducting a study of the divestitures relating to Johnson & Johnson's $16.6 billion acquisition of Pfizer's consumer health division in 2006. Six brands were divested in this matter to alleviate antitrust concern. For three of the brands, their pre- and post-divestiture performances are similar, while the remainder underwent changes that do not appear to be divestiture related. Overall, the results are consistent with the view that the divestitures maintained the pre-transaction level of competition.

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    File URL: http://www.sciencedirect.com/science/article/pii/S0167-7187(10)00098-6
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    Article provided by Elsevier in its journal International Journal of Industrial Organization.

    Volume (Year): 29 (2011)
    Issue (Month): 2 (March)
    Pages: 273-282

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    Handle: RePEc:eee:indorg:v:29:y:2011:i:2:p:273-282
    Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505551

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    1. Peters, Craig, 2006. "Evaluating the Performance of Merger Simulation: Evidence from the U.S. Airline Industry," Journal of Law and Economics, University of Chicago Press, vol. 49(2), pages 627-649, October.
    2. John Simpson & Christopher Taylor, 2008. "Do Gasoline Mergers Affect Consumer Prices? The Marathon Ashland Petroleum and Ultramar Diamond Shamrock Transaction," Journal of Law and Economics, University of Chicago Press, vol. 51(1), pages 135-152, 02.
    3. Justine S. Hastings & Richard J. Gilbert, 2005. "MARKET POWER, VERTICAL INTEGRATION AND THE WHOLESALE PRICE OF GASOLINE -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 53(4), pages 469-492, December.
    4. Breen Denis A., 2004. "The Union Pacific/Southern Pacific Rail Merger: A Retrospective on Merger Benefits," Review of Network Economics, De Gruyter, vol. 3(3), pages 1-40, September.
    5. Stephen G. Donald & Kevin Lang, 2007. "Inference with Difference-in-Differences and Other Panel Data," The Review of Economics and Statistics, MIT Press, vol. 89(2), pages 221-233, May.
    6. Tenn, Steven & Yun, John M., 2008. "Biases in demand analysis due to variation in retail distribution," International Journal of Industrial Organization, Elsevier, vol. 26(4), pages 984-997, July.
    7. Pesendorfer, Martin, 2003. " Horizontal Mergers in the Paper Industry," RAND Journal of Economics, The RAND Corporation, vol. 34(3), pages 495-515, Autumn.
    8. Vita, Michael G & Sacher, Seth, 2001. "The Competitive Effects of Not-for-Profit Hospital Mergers: A Case Study," Journal of Industrial Economics, Wiley Blackwell, vol. 49(1), pages 63-84, March.
    9. Elzinga, Kenneth G, 1969. "The Antimerger Law: Pyrrhic Victories?," Journal of Law and Economics, University of Chicago Press, vol. 12(1), pages 43-78, April.
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