In this chapter we survey the empirical literature on media bias, with a focus on partisan and ideological biases. First, we discuss the methods used to measure the relative positions of media outlets. We divide bias into two categories, explicit and implicit bias. We group existing measures of...

We propose a new method for measuring the relative ideological positions of newspapers, voters, interest groups, and political parties. The method uses data on ballot propositions. We exploit the fact that newspapers, parties, and interest groups take positions on these propositions, and the...

We propose a new method for measuring the relative ideological positions of newspapers, voters, interest groups, and political parties. The method uses data on ballot propositions. We exploit the fact that newspapers, parties, and interest groups take positions on these propositions, and the...

We analyze minute-by-minute, individual level data on viewership for Italian TV news broadcasts, matched with detailed data on content. We study viewer behavior, especially the decision of viewers to switch away from a news program as a function of the type of story being broadcast. Somewhat...