The advent of the Internet has revolutionized the way companies advertise, develop and distribute products. Firms can now customize their advertising messages and products to the particular characteristics and needs of customers. Customers themselves can create their own products. We investigate...

Research summary: Platform owners sometimes enter complementors’ product spaces and compete against them. Using data from Amazon.com to study Amazon’s entry pattern into third-party sellers’ product spaces, we find that Amazon is more likely to target successful product spaces. We also...

Platform owners sometimes enter complementors' product spaces to compete against them directly. Prior studies have offered two possible explanations for such entries: platform owners may target the most successful complementors so as to appropriate value from their innovations, or they may...