Due to network effects and switching costs in platform markets, entrants generally must offer revolutionary functionality. We explore a second entry path that does not rely upon Schumpeterian innovation: platform envelopment. Through envelopment, a provider in one platform market can enter...

Many two-sided platforms (e.g., eBay, Google, iOS, Android, Twitter, Amazon) provide integration tools, such as modular interfaces, interactive development environments, application programming interfaces (APIs), and help desks to reduce the costs and improve the functionality of third party...