“…At a broad level, this paper relates to information structures in advertising auctions, e.g., Bergemann et al (2021), and to nonlinear pricing, market segmentation, and competition, e.g., Bergemann et al (2015), Bonatti (2011), Elliott et al (2020), and Yang (2022. Finally, our analysis can be easily extended to discuss self-preferencing by a monopoly platform.…”