A Note on the Welfare Effects of Horizontal Mergers in Asymmetric Linear Oligopolies
AbstractThis paper extends Farrell and Shapiro (1990) and Levin (1990) by providing necessary and sufficient conditions for horizontal mergers to be both profitable and welfare-enhancing when market demand and firms¡¯ costs are linear. We show that profitable, welfare-enhancing mergers are likely to involve firms whose combined pre-merger market shares exceed 50%, and that mergers may be profitable and welfare-enhancing even when they do not generate any direct cost efficiencies. Our results suggest that any approach to evaluating the welfare effects of horizontal mergers which does not account for industry-wide strategic effects is seriously flawed.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoArticle provided by Society for AEF in its journal Annals of Economics and Finance.
Volume (Year): 7 (2006)
Issue (Month): 1 (May)
Horizontal merger; welfare effect; Antitrust policy;
Find related papers by JEL classification:
- L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
- L40 - Industrial Organization - - Antitrust Issues and Policies - - - General
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- White, Lawrence J, 1987. "Antitrust and Merger Policy: A Review and Critique," Journal of Economic Perspectives, American Economic Association, vol. 1(2), pages 13-22, Fall.
- Fisher, Franklin M, 1987. "Horizontal Mergers: Triage and Treatment," Journal of Economic Perspectives, American Economic Association, vol. 1(2), pages 23-40, Fall.
- Dalkir, Serdar & Logan, John W. & Masson, Robert T., 2000. "Mergers in symmetric and asymmetric noncooperative auction markets: the effects on prices and efficiency," International Journal of Industrial Organization, Elsevier, vol. 18(3), pages 383-413, April.
- Salop, Steven C, 1987. "Symposium on Mergers and Antitrust," Journal of Economic Perspectives, American Economic Association, vol. 1(2), pages 3-12, Fall.
- Farrell, Joseph & Shapiro, Carl, 1990.
"Horizontal Mergers: An Equilibrium Analysis,"
American Economic Review,
American Economic Association, vol. 80(1), pages 107-26, March.
- Farrell, Joseph & Shapiro, Carl, 1988. "Horizontal Mergers: An Equilibrium Analysis," Department of Economics, Working Paper Series qt0tp305nx, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Farrell, J. & Shapiro, C., 1988. "Horizontal Mergers: An Equilibrium Analysis," Papers 17, Princeton, Woodrow Wilson School - Discussion Paper.
- Joseph Farrell and Carl Shapiro., 1988. "Horizontal Mergers: An Equilibrium Analysis," Economics Working Papers 8880, University of California at Berkeley.
- Zhang, Anming & Zhang, Yimin, 1996. "Stability of a Cournot-Nash equilibrium: The multiproduct case," Journal of Mathematical Economics, Elsevier, vol. 26(4), pages 441-462.
- Salant, Stephen W & Switzer, Sheldon & Reynolds, Robert J, 1983. "Losses from Horizontal Merger: The Effects of an Exogenous Change in Industry Structure on Cournot-Nash Equilibrium," The Quarterly Journal of Economics, MIT Press, vol. 98(2), pages 185-99, May.
- Jingang Zhao, 1999. "Cost Savings and the Optimal Market Structure," Working Papers 99-08, Ohio State University, Department of Economics.
- Schmalensee, Richard, 1987. "Horizontal Merger Policy: Problems and Changes," Journal of Economic Perspectives, American Economic Association, vol. 1(2), pages 41-54, Fall.
- Joan Canton & Maia David & Bernard Sinclair-Desgagné, 2007. "Environmental regulation and mergers within the eco-industry," Working Papers 2007/01, INRA, Economie Publique.
- BOCCARD, Nicolas, 2009. "On efficiency, concentration and welfare," CORE Discussion Papers 2009040, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- X. Wang & Jingang Zhao, 2009. "On the efficiency of indirect taxes in differentiated oligopolies with asymmetric costs," Journal of Economics, Springer, vol. 96(3), pages 223-239, April.
- Jeddy, Mohamed & Larue, Bruno, 2012. "Mergers, concurrent marketing mechanisms and the performance of sequential auctions," Working Papers 126945, Structure and Performance of Agriculture and Agri-products Industry (SPAA).
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Qiang Gao).
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.