Grunig and Hunt's Four Models (1984)

The Phineas Taylor Barnum (hype and press agentry) persists mainly on things that hype up a certain object or whatever is being advertised to better persuade the consumers into purchasing their product over others through lack of truth.

Ivy Lee, which consists of facts and info keeps the consumers and the sellers on the same page with their product/ business. They usually consist of surveys or other things to get the consumers to interact with their product. This kind of Public Relation is most popular out of the four. His philosophy consistent with what has sometimes been called the "two-way street" approach to public relations, in which PR consists of helping clients listen as well as communicate messages to their publics

Edward Bernays, scientific persuasion, keeps elements more on the competitive side. Bernays is regarded as the pioneer of public relations. His influence radically changed the persuasion tactics used in campaign advertising and political campaigns. There is a strong and apparent imbalance between the sellers and the consumers. They keep their information scientific and solely based on facts to the buyers. This consists with about 20 percent of the public relations market.

Lastly, Arthur W. Page keep a mutual understanding with the public relations market. Consisting of formative research and evaluations towards the understandings of the product. This public relations market usually is a regulated business and keeps a modern flat structure of companies. Page is considered the “father