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Competition Law

Competition Law (9th edn)

Richard Whish and David Bailey
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date: 04 June 2023

p. 82920. Mergers (1): introductionlocked

p. 82920. Mergers (1): introductionlocked

  • Richard WhishRichard WhishEmeritus Professor of Law at King’s College London
  •  and David BaileyDavid BaileyVisiting Professor of Law at King’s College London


This chapter briefly discusses the subject of merger control. Merger control is an important component of most, though not all, systems of competition law. It begins by explaining what is meant by a ‘merger’ or ‘concentration’, the term used by the EU Merger Regulation (‘the EUMR’). It then proceeds to describe the different effects of mergers between independent firms from within and different production levels, the proliferation of systems of merger control, why firms merge and the purpose of merger control. The final section of the chapter deals with how to design a system of merger control when a country decides, as a matter of policy, to adopt one.

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