The document discusses several theories of media globalization. It outlines the functionalist theory proposed by Harold Laswell and Charles Wright in the 1940s and 1960s, which describes five functions of mass media: surveillance, correlation, transmission, entertainment, and mobilization. It also discusses the social responsibility theory derived from the Hutchins Commission report of 1947, which advocated that media have certain obligations to society, such as truth, accuracy, objectivity, balance and diversity of views. Finally, it summarizes the Marxist theory of media tied to communist ideology, emphasizing the role of media as a collective agitator and propagandist to build communism under government control rather than private ownership.