is the spread of culture outward from the most interconnected places or from centers of wealth and influence. Cultural traits spread first from one powerful person, city, or powerful class to another powerful person, city, or social class. Eventually the trait could be shared with other people, smaller cities, different social classes, or less-developed countries. Unlike contagious diffusion, ________________ may skip some places while moving on to others. Most popular culture, such as music, fashion, and fads, follows the _______________ path. Cell phone technology demonstrates how _________________ works. When cell phones first appeared in the 1980s, they were expensive. Only wealthy people in large cities in developed countries owned them. As cell phone networks grew and cell phones became mass-produced, they eventually spread to a wider market. Today, cell phones have diffused throughout the world. The spread of cultural traits from the most interconnected, powerful, wealthy people/organizations down to others.May be restrictive due to cost or access.