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 …

Healthy democratic polities feature competing visions of a good society but also require
some level of cooperation and institutional trust. Democracy is at risk when citizens become …

There has been growing concern about the role social media plays in political polarization.
We investigated whether out-group animosity was particularly successful at generating …

Content on Twitter's home timeline is selected and ordered by personalization algorithms.
By consistently ranking certain content higher, these algorithms may amplify some …

Ensuring alignment, which refers to making models behave in accordance with human
intentions [1, 2], has become a critical task before deploying large language models (LLMs) …

Does the consumption of ideologically congruent news on social media exacerbate
polarization? I estimate the effects of social media news exposure by conducting a large …

Echo chambers and filter bubbles are potent metaphors that encapsulate widespread public
fear that the use of social media may limit the information that users encounter or consume …

We synthesize the literature on the recent rise of populism. First, we discuss definitions and
present descriptive evidence on the recent increase in support for populists. Second, we …

How do the Internet and social media affect political outcomes? We review empirical
evidence from the recent political economy literature, focusing primarily on work that …

We propose Factual News Graph (FANG), a novel graphical social context representation
and learning framework for fake news detection. Unlike previous contextual models that …