Mergers, Entry, and Consumer Welfare

• 成果类型: Article
• 署名作者: Caradonna, Peter; Miller, Nathan h.; Sheu, Gloria
• 署名单位: California Institute of Technology; Georgetown University; Federal Reserve System - USA; Federal Reserve System Board of Governors
• 刊物名称: AMERICAN ECONOMIC JOURNAL-MICROECONOMICS
• ISSN/ISSBN: 1945-7669
• DOI: 10.1257/mic.20240057
• 发表日期: 2025
• 页码: 103-130
• 关键词: horizontal mergers; models; efficiencies; oligopoly

摘要

We model merger-induced entry in the context of differentiated-products price competition. We fully characterize the combinations of merger efficiencies and entrant qualities that can mitigate the adverse equilibrium welfare effects of an otherwise anticompetitive merger. The possibility of merger-induced entry introduces nonmonotonicity into the equilibrium value that consumers receive from merger efficiencies, potentially necessitating the joint analysis of efficiencies and entry in merger review. We also explicitly characterize the efficiencies required for merger-induced entrants to make profitable mergers consumer surplus neutral. We provide an empirical application to the T-Mobile/Sprint merger. (JEL G34, G38, K21, L13, L41)