期刊
INTERNATIONAL JOURNAL OF PRESS-POLITICS
卷 28, 期 3, 页码 601-626出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/19401612211047194
关键词
polarization; partisan media; online behavioral data; news exposure; media effects; affective polarization; attitude extremity; computational social science
This paper examines the effects of liberal, conservative, and centrist news on affective and attitude polarization. The results show that exposure to partisan and centrist news websites does not enhance polarization, indicating limited effects of news in the real world.
Many blame partisan news media for polarization in America. This paper examines the effects of liberal, conservative, and centrist news on affective and attitude polarization. To this end, we rely on two studies that combine two-wave panel surveys (N1 = 303, N2 = 904) with twelve months worth of web browsing data submitted by the same participants comprising roughly thirty-eight million visits. We identify news exposure using an extensive list of news domains and develop a machine learning classifier to identify exposure to political news within these domains. The results offer a robust pattern of null findings. Exposure to partisan and centrist news websites-no matter if it is congenial or crosscutting-does not enhance polarization. These null effects also emerge among strong and weak partisans as well as Democrats and Republicans alike. We argue that these null results accurately portray the reality of limited effects of news in the real world. Politics and partisan news account for a small fraction of citizens' online activities, less than 2 percent in our trace data, and are nearly unnoticeable in the overall information and communication ecology of most individuals.
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