Sunday, February 21, 2021

Most people across the political spectrum have relatively moderate media diets, about a quarter of which consist of mainstream news websites & portals; there is above 50pct overlap of media use among Democrats & Republicans

(Almost) Everything in Moderation: New Evidence on Americans' Online Media Diets. Andrew M. Guess. American Journal of Political Science, February 19 2021. https://doi.org/10.1111/ajps.12589

Rolf Degen's take: Large-scale study corroborates that the vast majority of Americans consume relatively moderate media diets, making a mockery of the elitist caricature of ideologues in echo chambers

Abstract: Does the internet facilitate selective exposure to politically congenial content? To answer this question, I introduce and validate large‐N behavioral data on Americans' online media consumption in both 2015 and 2016. I then construct a simple measure of media diet slant and use machine classification to identify individual articles related to news about politics. I find that most people across the political spectrum have relatively moderate media diets, about a quarter of which consist of mainstream news websites and portals. Quantifying the similarity of Democrats' and Republicans' media diets, I find nearly 65% overlap in the two groups' distributions in 2015 and roughly 50% in 2016. An exception to this picture is a small group of partisans who drive a disproportionate amount of traffic to ideologically slanted websites. If online “echo chambers” exist, they are a reality for relatively few people who may nonetheless exert disproportionate influence and visibility.



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