The importance of user-generated content is growing as media consumption is moving online; yet, investigations of media bias on user-generated content platforms are rare. We develop a novel procedure to detect coverage bias - i.e., bias in the amount of coverage certain topics or issues receive -...

We develop a model to study the political economy implications of information gatekeeping, i.e., a policy of granting access only to friendly media outlets and denying access to critical ones. While an incumbent prefers positive bias, granting access improves her re-election probability only if...