Abstract

http://ssrn.com/abstract=1359288
 


 



Analyzing Horizontal Mergers: Unilateral Effects in Product-Differentiated Markets


Herbert J. Hovenkamp


University of Iowa - College of Law

March 13, 2009

U Iowa Legal Studies Research Paper No. 09-12

Abstract:     
This essay offers a brief, non-technical exposition of the antitrust analysis of horizontal mergers in product differentiated markets where the resulting price increase is thought to be unilateral - that is, only the post-merger firm increases its prices while other firms in the market do not. More realistically, non-merging firms who are reasonably close in product space to the merging firm will also be able to increase their prices when the post-merger firm's prices rise. The unilateral effects theory is robust and has become quite conventional in merger analysis. There is certainly no reason for thinking that it involves any more conjecture than what occurs in traditional concentration-increasing merger analysis. Nevertheless, as with all predictions about mergers, we must live with a certain measure of uncertainty.

Number of Pages in PDF File: 34

Keywords: Antitrust, Monopoly, Mergers, Competition

JEL Classification: K00, K2, K21, L4, L41

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Date posted: March 28, 2009  

Suggested Citation

Hovenkamp, Herbert J., Analyzing Horizontal Mergers: Unilateral Effects in Product-Differentiated Markets (March 13, 2009). U Iowa Legal Studies Research Paper No. 09-12. Available at SSRN: http://ssrn.com/abstract=1359288 or http://dx.doi.org/10.2139/ssrn.1359288

Contact Information

Herbert J. Hovenkamp (Contact Author)
University of Iowa - College of Law ( email )
407 Boyd Law Building
Iowa City, IA 52242
United States
319-335-9079 (Phone)
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