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Assessing horizontal mergers under uncertain efficiency gains

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Author Info
Choné, Philippe
Linnemer, Laurent

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Abstract

The analysis of horizontal mergers hinges on a tradeoff between unilateral effects and efficiency gains. We examine the role of uncertainty in this tradeoff. In theory, the attitude towards uncertainty depends on the curvature of the social objective function. On the one hand, adjustment effects, both on the consumers' and firms' sides, tend to make consumers' surplus and firms' profits convex. On the other hand, pass-through effects may act in the opposite direction. We show that convexity prevails in a number of situations, including the most general linear demand model. Implications for empirical merger analysis are exposed.

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Publisher Info
Article provided by Elsevier in its journal International Journal of Industrial Organization.

Volume (Year): 26 (2008)
Issue (Month): 4 (July)
Pages: 913-929
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Handle: RePEc:eee:indorg:v:26:y:2008:i:4:p:913-929

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Web page: http://www.elsevier.com/locate/inca/505551

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  1. Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, December.
  2. Lagerlof, Johan N.M. & Heidhues, Paul, 2005. "On the desirability of an efficiency defense in merger control," International Journal of Industrial Organization, Elsevier, vol. 23(9-10), pages 803-827, December. [Downloadable!] (restricted)
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  3. Werden, Gregory J & Froeb, Luke M, 1994. "The Effects of Mergers in Differentiated Products Industries: Logit Demand and Merger Policy," Journal of Law, Economics and Organization, Oxford University Press, vol. 10(2), pages 407-26, October.
  4. Ivaldi, Marc & Verboven, Frank, 2005. "Quantifying the effects from horizontal mergers in European competition policy," International Journal of Industrial Organization, Elsevier, vol. 23(9-10), pages 669-691, December. [Downloadable!] (restricted)
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  5. Werden, Gregory J, 1996. "A Robust Test for Consumer Welfare Enhancing Mergers among Sellers of Differentiated Products," Journal of Industrial Economics, Blackwell Publishing, vol. 44(4), pages 409-13, December. [Downloadable!] (restricted)
  6. Albert Banal-Esta?l, 2002. "Information-Sharing Implications of Horizontal Mergers," UFAE and IAE Working Papers 544.02, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC). [Downloadable!]
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  7. Anderson, Simon P. & de Palma, Andre & Kreider, Brent, 2001. "Tax incidence in differentiated product oligopoly," Journal of Public Economics, Elsevier, vol. 81(2), pages 173-192, August. [Downloadable!] (restricted)
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  8. Werden, Gregory J & Froeb, Luke M, 1998. "The Entry-Inducing Effects of Horizontal Mergers: An Exploratory Analysis," Journal of Industrial Economics, Blackwell Publishing, vol. 46(4), pages 525-43, December. [Downloadable!] (restricted)
  9. Farrell, Joseph & Shapiro, Carl, 1990. "Horizontal Mergers: An Equilibrium Analysis," American Economic Review, American Economic Association, vol. 80(1), pages 107-26, March. [Downloadable!] (restricted)
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  10. Werden, G.J., 1996. "A Robust Test for Consumer Welfare Enhancing Mergers Among Sellers of Differentiated Products," Papers 96-01, U.S. Department of Justice - Antitrust Division.
  11. Besanko, David & Spulber, Daniel F, 1993. "Contested Mergers and Equilibrium Antitrust Policy," Journal of Law, Economics and Organization, Oxford University Press, vol. 9(1), pages 1-29, April.
  12. Licun Xue & Rabah Amir & Effrosyni Diamantoudi, 2004. "Merger Performance under Uncertain Efficiency Gains," Working Papers 2004.79, Fondazione Eni Enrico Mattei. [Downloadable!]
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  13. Neven, Damien J & Röller, Lars-Hendrik, 2000. "Consumer Surplus vs. Welfare Standard in a Political Economy Model of Merger Control," CEPR Discussion Papers 2620, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  14. Raymond Deneckere & Carl Davidson, 1985. "Incentives to Form Coalitions with Bertrand Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(4), pages 473-486, Winter. [Downloadable!] (restricted)
  15. Aviv Nevo, 2000. "Mergers with Differentiated Products: The Case of the Ready-to-Eat Cereal Industry," RAND Journal of Economics, The RAND Corporation, vol. 31(3), pages 395-421, Autumn.
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