Calendrier du 15 novembre 2021
Roy Seminar (ADRES)
Du 15/11/2021 de 17:00 à 18:15
R1-09 Campus Jourdan 75014 Paris
GALEOTTI Andrea (LSE)
Market segmentation through information
An information designer has precise information about consumers' preferences over products sold by oligopolists. The designer chooses what information to reveal to competing, differentiated firms who, then, compete on price. We ask what market outcomes the designer can achieve. The information designer is a metaphor for an internet platform who collects data about users and sells it to firms who can, in turn, target discounts and promotions towards different consumers. Our analysis provides new benchmarks demonstrating the power that users' data can endow internet platforms with. These benchmarks speak directly to current regulatory debates.
Régulation et Environnement
Du 15/11/2021 de 12:00 à 13:15
Salle R2-21 - Campus Jourdan - 75014 PARIS
CHONé Philippe (ENSAE)
Double marginalization and vertical integration
Asymmetric information in procurement entails double marginalization. The phenomenon is most severe when the buyer has all the bargaining power at the production stage, while it vanishes when the buyer and suppliers' weights are balanced. Vertical integration eliminates double marginalization and reduces the likelihood that the buyer purchases from independent suppliers.
Conditional on market foreclosure, the probability that final consumers are harmed is positive only if the buyer has more bargaining power when selecting suppliers than when negotiating over prices and quantities. Otherwise, the buyer's and consumers' interests are aligned.