We review the theoretical literature on market determinants of media bias. We present a theoretical framework that …

We build a model of media bias in which consumers with heterogeneous beliefs do not know whether the media firm (i) is …

implications of our findings for the regulation of media markets. …

access only to friendly media outlets and denying access to critical ones. While an incumbent prefers positive bias, granting … gatekeeping can induce a quid pro quo relationship: media provides coverage with positive bias in exchange of future access …, thereby affecting electoral outcomes in favor of incompetent incumbents. The degree of access media enjoy increases with …

quality when its reports conform to the consumer's prior expectations. We use this fact to build a model of media bias in …

This paper reviews the empirical evidence on commercial media bias (i.e., advertisers influence over media accuracy … three main policy insights for media regulators: i) Media regulators should target their monitoring efforts towards news …; iii) A sufficiently high degree of competition in the market for news drives out commercial media bias …

This paper analyzes a two-sided market for news where advertisers may pay a media outlet to conceal negative …) higher is the accuracy of the media outlet' reports. Moreover, when advertisers' products are correlated, a higher degree of … competition in the market of the advertisers' products may decrease the accuracy of the media outlet's reports. …

This paper reviews the empirical evidence on commercial media bias (i.e., advertisers influence over media accuracy … three main policy insights for media regulators: i) Media regulators should target their monitoring efforts towards news …; iii) A sufficiently high degree of competition in the market for news drives out commercial media bias. …