Rising political polarization is, in part, attributed to the fragmentation of news media and the
spread of misinformation on social media. Previous reviews have yet to assess the full …

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 …

Affective polarization has become a defining feature of twenty-first-century US politics, but
we do not know how it relates to citizens' policy opinions. Answering this question has …

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 …

There has been much concern over the impact of partisan echo chambers and filter bubbles
on public debate. Is this concern justified, or is it distracting us from more serious issues …

We study how social media affects election outcomes in the United States. We use variation
in the number of Twitter users across counties induced by early adopters at the 2007 South …

The world of today presents a duality of phenomenal progress and persistent ills. Amid such
existential contradictions, public deliberation forms one of the central pillars of a functional …

Affective polarization–partisans' dislike and distrust of those from the other party–has
reached historically high levels in the United States. While numerous studies estimate its …

The new high-choice media environment has raised concerns that users of social
networking sites primarily select political information that supports their political opinions …

Machine learning is used extensively in recommender systems deployed in products. The
decisions made by these systems can influence user beliefs and preferences which in turn …