Towards an effective merger control policy in a dynamic context

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Authors: François Jeanjean, Stéphane Ciriani
Cited by: 0
References: 16

Abstract

This article shows that dynamic efficiency gains should be better considered in merger control policy, especially in innovative sectors where they are very high and play an essential role. Neglecting those effects leads to serious mistakes in merger assessment (type-1 errors) 1 to the detriment of the industry and consumers alike. Starting from the Cournot model with homogeneous product and adding investment in marginal cost reduction, we show that mergers increase firms' investment and reduce marginal costs. These dynamic efficiency gains add to any static efficiency gains like synergy and economies of scale. If the total efficiency gains are large enough, they can lower prices and benefit consumers. Technical progress increases the dynamic effects and makes mergers much more likely to be pro-competitive.

Fields of Study & Subjects

Corporate Governance and Law Corporate Finance and Governance Merger and Competition Analysis

Publication details

Journal / source
European Competition Journal
Publisher
Informa UK Limited
Volume
22
Issue
2
Pages
456–470
Publication date
15 April 2026
Language
EN