Mergers with Differentiated Products: Where Do We Stand?
Review of Industrial Organization, Vol. 58, No. 1, pp. 179-212, 2021
44 Pages Posted: 28 Sep 2020 Last revised: 17 Feb 2021
Date Written: December 20, 2020
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.
Keywords: Mergers, Unilateral Effects, Differentiated Products
JEL Classification: L11, L13, L40, L41
Suggested Citation: Suggested Citation