Skip to main content

STICERD Work in Progress Seminars

Competing Intermediaries

Can Celiktemur (LSE, STICERD)

Friday 06 December 2013 13:00 - 14:00

Many of our seminars and public events this year will continue as in person or as hybrid (online and in person) events. Please check our website listings and Twitter feed @STICERD_LSE for updates.

Unless otherwise specified, in-person seminars are open to the public.

Those unable to join the seminars in-person are welcome to participate via zoom if the event is hybrid.

About this event

We consider a trade setup between a seller and multiple buyers over the transaction of a single indivisible object and analyze a game where multiple intermediaries compete with each other to attract the seller. Agents have independent private valuations for this object and all players have quasilinear preferences. We show the existence and uniqueness of equilibrium outcomes. In any equilibrium, all intermediaries make zero expected profits while the allocation rule and the expected payoffs agents receive are equal to those that are accrued under the seller's revenue maximizing auction with reserve prices. Hence these unique outcomes can be implemented in an equilibrium in which all intermediaries announce standard auctions with reserve prices. Characterizing the unique equilibrium outcomes when there is a single monopolist intermediary, we show that competition among intermediaries unambiguously improves allocative efficiency as well as the agents' expected payoffs. However, we also show that relative to the equilibrium under competition, a social planner may further increase total surplus.

STICERD Work in Progress seminars are held on Fridays in term time at 13:00-14:00, ONLINE, unless specified otherwise.

Seminar organisers: Philip Barteska and Alix Bonargent

For further information please contact Lubala Chibwe, either by email:

Please use this link to subscribe or unsubscribe to the STICERD Work in Progress seminars mailing list (sticwip).