One of today's most controversial and consequential issues is whether the global uptake of
digital media is causally related to a decline in democracy. We conducted a systematic …

Scholars increasingly point to polarization as a central threat to democracy—and identify
technology platforms as key contributors to polarization. In contrast, we argue that …

Rising partisan animosity is associated with a reduction in support for democracy and an
increase in support for political violence. Here we provide a multi-level review of …

An intensely debated topic is whether political polarization on social media is on the rise. We
can investigate this question only if we can quantify polarization, by taking into account how …

Despite the global presence of social media platforms, the reasons why people like and
share content are still poorly understood. We investigate how group identity mentions and …

Are members of marginalized communities silenced on social media when they share
personal experiences of racism? Here, we investigate the role of algorithms, humans, and …

Existing studies of political polarization are often limited to a single country and one form of
polarization, hindering a comprehensive understanding of the phenomenon. Here we …

Nearly five billion people around the world now use social media, and this number
continues to grow. One of the primary goals of social media platforms is to capture and …

A compelling exploration of concrete strategies to reduce partisan animosity by building on
what Democrats and Republicans have in common. One of the defining features of twenty …

Low uptake of the COVID-19 vaccine in the US has been widely attributed to social media
misinformation. To evaluate this claim, we introduce a framework combining lab experiments …