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Ulric B. and Evelyn L. Bray Social Sciences Seminar

Tuesday, November 1, 2022
4:00pm to 5:00pm
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Baxter Lecture Hall
Multi-Dimensional Screening: Buyer-Optimal Learning And Informational Robustness
Anne-Katrin Roesler, Assistant Professor of Economics, University of Toronto,

Abstract: A monopolist seller of multiple goods screens a buyer whose type is initially unknown to both but drawn from a commonly known distribution. The buyer privately learns about his type via a signal. We derive the seller's optimal mechanism in two different information environments. We begin by deriving the buyer-optimal outcome. Here, an information designer first selects a signal, and then the seller chooses an optimal mechanism in response; the designer's objective is to maximize consumer surplus. Then, we derive the optimal informationally robust mechanism. In this case, the seller first chooses the mechanism, and then nature picks the signal that minimizes the seller's profits. We derive the relation between both problems and show that the optimal mechanism in both cases takes the form of pure bundling.

For more information, please contact Barbara Estrada by phone at 626-395-4083 or by email at [email protected].