Efficiency Gains and Structural Remedies in Merger Control

34 Pages Posted: 14 May 2008

See all articles by Helder Vasconcelos

Helder Vasconcelos

Universidade do Porto - Faculdade de Economia (FEP)

Multiple version iconThere are 2 versions of this paper

Date Written: February 2007


This paper studies the role of structural remedies in merger control in a Cournot setting where (endogenous) mergers are motivated by prospective efficiency gains and must be submitted to an Antitrust Authority (AA) which might require partial divestiture for approval. Both positive and negative effects of merger remedies are identified. First, structural remedies create new merger opportunities to firms. Second, when divestitures are required, the AA over-fixes, i.e., goes beyond the recreation of the level of competition that existed prior to the transaction. Finally, by insisting in over-fixing, the AA may discourage firms to look for more efficient mergers, inducing a final outcome where consumers' surplus is lower than if divestitures couldn't be required. Overall, however, structural remedies are shown to be good: consumers' surplus ex-ante is higher with than without remedies.

Keywords: Efficiency gains, endogenous mergers, failing firm defence, merger remedies

JEL Classification: D43, L13, L41, L51

Suggested Citation

Vasconcelos, Helder, Efficiency Gains and Structural Remedies in Merger Control (February 2007). CEPR Discussion Paper No. DP6093, Available at SSRN: https://ssrn.com/abstract=1132230

Helder Vasconcelos (Contact Author)

Universidade do Porto - Faculdade de Economia (FEP) ( email )

Rua Dr. Roberto Frias
4200-464 Porto, 4200-464

HOME PAGE: http://www.fep.up.pt/docentes/hvasconcelos

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