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Mergers with Differentiated Products: Where Do We Stand?

Authors
  • Valletti, Tommaso1
  • Zenger, Hans2
  • 1 Imperial College Business School, Imperial College London,
  • 2 European Commission, MADO 17/014,
Type
Published Article
Journal
Review of Industrial Organization
Publisher
Springer US
Publication Date
Feb 09, 2021
Pages
1–34
Identifiers
DOI: 10.1007/s11151-021-09810-5
PMID: 33584005
PMCID: PMC7872118
Source
PubMed Central
Keywords
Disciplines
  • Article
License
Unknown

Abstract

On the occasion of the 10th anniversary of the 2010 U.S. Horizontal Merger Guidelines, this article provides an overview of the state of economic analysis of unilateral effects in mergers with differentiated products. Drawing on our experience with merger enforcement in Europe, we discuss both static and dynamic competition, with a special emphasis on the calibration of competitive effects. We also discuss the role of market shares and structural presumptions in differentiated product markets.

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