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Abstract What happens when news aggregators tailor their newsfeeds to include partisan news aimed at users with a known party preference? Relying on a custom-made news portal featuring real, timely articles, this study examines the influence of partisan news sources on participant headline exposure, clicks on news stories to read, and perceptions about the portal’s ability to reliably and comprehensively provide the most important news of the day. Over a period of 12 days, participants preferring either the Republican or Democratic party were randomly assigned to newsfeeds containing increased dosages of real news articles from sources supportive of the participant’s preferred party. Results demonstrate that partisan personalization can benefit a news aggregator by increasing usage and perceptions of its quality, while potentially harming society by decreasing attention to high-quality mainstream sources.
Bryanov et al. (Wed,) studied this question.