Revisiting the impact of upstream mergers with downstream complements and substitutes

I examine how upstream mergers affect negotiated prices when suppliers bargain with a monopoly intermediary selling products to final consumers. Conventional wisdom holds that such transactions lower negotiated prices when the products are complements for consumers and raise them when they are subst...

Descripción completa

Detalles Bibliográficos
Autor: Ide, E. (Enrique)|||/items/36f0acbe-ce48-4895-a56d-9a2b18e46c07
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Navarra
Repositorio:Dadun. Depósito Académico Digital de la Universidad de Navarra
Idioma:inglés
OAI Identifier:oai:dadun.unav.edu:10171/117009
Acceso en línea:https://hdl.handle.net/10171/117009
Access Level:acceso abierto
Palabra clave:Upstream mergers
Conglomerate mergers
Complements and substitutes
Bargaining
Descripción
Sumario:I examine how upstream mergers affect negotiated prices when suppliers bargain with a monopoly intermediary selling products to final consumers. Conventional wisdom holds that such transactions lower negotiated prices when the products are complements for consumers and raise them when they are substitutes. The idea is that consumer demand relationships carry over to upstream negotiations, where mergers between complements weaken the suppliers’ bargaining leverage, while mergers between substitutes strengthen it. I challenge this view, showing that it breaks down when the intermediary sells products beyond those of the merging suppliers. In such cases, the merging suppliers’ products may act as substitutes for the intermediary even if they are complements for consumers, or as complements for the intermediary even if they are substitutes for consumers. These findings show that upstream conglomerate mergers can raise prices without foreclosure or monopolisation and help explain buyer-specific price effects resulting from such mergers.