A study of more than 250 platforms a reveal why most fail. David Yoffie, May 2019, Paper, “Platforms have become one of the most important business models of the 21st century. In our newly-published book, we divide all platforms into two types: Innovation platforms enable third-party firms to add complementary products and services to a core product or technology. Prominent examples include Google Android and Apple iPhone operating systems as well as Amazon Web Services. The other type, transaction platforms, enable the exchange of information, goods, or services. Examples include Amazon Marketplace, Airbnb, or Uber.Link