Many critics raise concerns about the prevalence of 'echo chambers' on social media and
their potential role in increasing political polarization. However, the lack of available data …

We studied the effects of exposure to reshared content on Facebook during the 2020 US
election by assigning a random set of consenting, US-based users to feeds that did not …

Exposure to news, opinion, and civic information increasingly occurs through social media.
How do these online networks influence exposure to perspectives that cut across ideological …

Does Facebook enable ideological segregation in political news consumption? We
analyzed exposure to news during the US 2020 election using aggregated data for 208 …

The rise of social media, and specifically Facebook, as a dominant force in the flow of news
in the United States has led to concern that people incur greater isolation from diverse …

We investigated the effects of Facebook's and Instagram's feed algorithms during the 2020
US election. We assigned a sample of consenting users to reverse-chronologically-ordered …

Do echo chambers actually exist on social media? By focusing on how both Italian and US
Facebook users relate to two distinct narratives (involving conspiracy theories and science) …

What role do ideologically extreme media play in the polarization of society? Here we report
results from a randomized longitudinal field experiment embedded in a nationally …

In recent years, there has been a great deal of concern about the proliferation of false and
misleading news on social media,,–. Academics and practitioners alike have asked why …

Do anonymous online conversations between people with different political views
exacerbate or mitigate partisan polarization? We created a mobile chat platform to study the …