Public
This theory comes from James E. Grunig's writing, "The Role of Information in Economic Decision Making" in 1966. This writing was the beginning of the situational theory of publics, as it had the first key idea, problem recognition, in the writing. Then, when he wrote about the decisions of people who own land in Columbia to become a professor, he also wrote about the second key idea, constraint recognition. He then added Herbert Krugman's idea of the third key idea, level of involvement, to explain the difference between the fourth and fifth key ideas, information seeking and information processing. After that, he wrote a book in 1984 which was named "Managing Public Relations", which further made the situational theory of publics make more sense, based on John Dewey's book, which was named "The Public and Its Problems".