User-generated online content changes traditional-media news on conflicts. Online posts by citizen journalists — first-hand witnesses of conflict events — change the extent, tonality, and content of traditional-media reporting of conflicts. Using an exogenous and excludable variation in...

How do the internet and social media affect political outcomes? We review empirical evidence from the recent political-economy literature, focusing primarily on the work that considers traits that distinguish the internet and social media from traditional offline media, such as low barriers to...

Using a randomized experiment in the context of the 2019 European elections in France, we study how fact-checking affects real sharing of “alternative facts” (false or misleading statements by politicians) on Facebook and the determinants of the decision to view the fact-checking. We expose...