The Agenda-Setting Role of the Mass Media in the Shaping of Public Opinion

Abstract

The power of the news media to set a nation's agenda, to focus public attention on a few key public issues, is an immense and well-documented influence. Not only do people acquire factual information about public affairs from the news media, readers and viewers also learn how much importance to attach to a topic on the basis of the emphasis placed on it in the news. Newspapers provide a host of cues about the salience of the topics in the daily news – lead story on page one, other front page display, large headlines, etc. Television news also offers numerous cues about salience – the opening story on the newscast, length of time devoted to the story, etc. These cues repeated day after day effectively communicate the importance of each topic. In other words, the news media can set the agenda for the public's attention to that small group of issues around which public opinion forms. The principal outlines of this influence were sketched by Walter Lippmann in his 1922 classic, Public Opinion, which began with a chapter titled " The World Outside and the