In the for-profit world, by contrast, there is a much higher degree of clarity on financial issues. This is particularly true when it comes to understanding how different businesses operate, which can be encapsulated in a set of principles known as business models. Although there is no definitive list of corporate business models, there is enough agreement about what they mean that investors and executives alike can engage in sophisticated conversations about any given company’s strategy. When a person says that a company is a “low-cost provider” or a “fast follower,” the main outlines of how that company operates are pretty clear. Similarly, stating that a company is using “the razor and the razor blade” model describes a type of ongoing customer relationship that applies far beyond shaving products.