A new paper is out in the International Journal of Press/Politics! In this one, Melanie Magin, Stefan Geiß, Birgit Stark and I look at the effects of algorithmic intermediaries on the fragmentation of issue perception.
A really exciting part is our measurement of issues: To account for temporal fluctuations and cognitive availability, we asked respondends for their own wording of the two most important issues of the day, across a span of 14 consecutive days.
The results are pretty exciting. In particular, we can show that mainstream news have a significant contribution to shared perceptions of important political issues.
Melanie and Stefan had the lead in this paper, and put a lot of empirical and theoretical work into it - thanks! Many thanks also to Christian Vaccari and our reviewers who saw this through.
Go read it here:
Magin, M., Geiß, S., Jürgens, P., & Stark, B. (2021). Common Core in Danger? Personalized Information and the Fragmentation of the Public Agenda. International Journal of Press/Politics. https://doi.org/10.1177/19401612211026595