A Caltech Library Service

Mergers, Entry, and Consumer Welfare

Caradonna, Peter and Miller, Nathan H. and Sheu, Gloria (2022) Mergers, Entry, and Consumer Welfare. . (Unpublished)

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


We analyze mergers and entry in oligopoly models of differentiated-products price competition. Under logit or constant elasticity of substitution demands, entry that restores pre-merger consumer surplus renders merger unprofitable. Thus, by revealed preference, it can be appropriate to infer entry barriers in merger review. The result extends to nested and random coefficients demand systems unless the entrant is a distant competitor of the merging firms. We develop modeling frameworks to guide empirical analysis in settings where theory is not dispositive. Applying these to the T-Mobile/Sprint merger, we find the Court may have erred in treating DISH as a merger-induced entrant.

Item Type:Report or Paper (Working Paper)
Related URLs:
URLURL TypeDescription Paper
Additional Information:The analysis and conclusions set forth are those of the authors and do not indicate concurrence by other members of the Board research staff or by the Board of Governors. All estimates and analyses in this article based on IRI data are by the authors and not by IRI. We thank Jonathan Baker, Chris Conlon, Serafin Grundl, Louis Kaplow, Robert Majure, John Mayo, Volker Nocke, Ted Rosenbaum, Nicolas Schutz, Carl Shapiro, Charles Taragin, and numerous seminar and conference participants for helpful comments.
Subject Keywords:mergers, entry, repositioning, merger efficiencies, antitrust policy
Classification Code:JEL Codes: K21, L13, L41
Record Number:CaltechAUTHORS:20221027-210525375
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:117626
Deposited By: George Porter
Deposited On:28 Oct 2022 14:53
Last Modified:28 Oct 2022 14:53

Repository Staff Only: item control page