Large e-commerce retailers and department stores function as marketplaces for millions of sellers, and consumers rely on the platform's assortment and display decisions to examine different sellers and make purchase decisions. Traditionally, the primary objective of these marketplaces for...

Consumers rely on platforms to access goods and services in many industries. Platform firms are often integrated, including their own goods in the menu of products offered to consumers. With the ability to impact both pricing and product assortment, these integrated firms face a trade-off...