1. Locations like towns, cities, retail parks, and office parks provide opportunities for businesses to interact with customers through employment, shopping, leisure activities, and transportation hubs. 2. These locations are organized in hierarchies where larger population centers have gravitational pull over smaller nearby locations. Understanding these hierarchies can help with branch planning and network development. 3. An example hierarchy shows the town of Droitwich satisfies basic needs but residents may travel to larger nearby Worcester or dominant center Birmingham for more options. Representation in the network should consider location importance within hierarchies.