Dashboard Mechanisms for Online Marketplaces

Saturday, April 25, 2020 - 2:15pm - 2:45pm
Keller 3-180
Jason Hartline (Northwestern University)
This paper gives a theoretical model for design and analysis of mechanisms for online marketplaces where a bidding dashboard enables the bid-optimization of long-lived agents. We assume that a good allocation algorithm exists when given the true values of the agents and we develop online winner-pays-bid and all-pay mechanisms that implement the same outcome of the algorithm with the aid of a bidding dashboard. The bidding dashboards that we develop work in conjunction with the mechanism to guarantee that bidding according to the dashboard is strategically equivalent (with vanishing utility difference) to bidding truthfully in the truthful implementation of the allocation algorithm. Our dashboard mechanism makes only a single call to the allocation algorithm in each stage.

Joint work with Aleck Johnsen, Denis Nekipelov, and Onno Zoeter.