On search keywords with trademarked terms, the brand owner (“focal brand”) and other relevant firms compete for consumers. For the focal brand, paid clicks have a direct substitute in the organic links below the paid ad(s). The proximity of this substitute depends on whether competing firms...

News consumers in many authoritarian countries read government-controlled sources even when independent sources are available. We test whether these choices reflect a preference for pro-government coverage versus persistent tastes for specific websites. We exploit textual data from news...

To what extent do mass media outlets influence viewers' trust in scientific evidence and compliance with behavior recommended by scientific experts? Exploiting the US lock-down period of the COVID-19 pandemic in early 2020, we analyze a large longitudinal database that combines daily...

We test for and measure the effects of cable news in the US on regional differences in compliance with recommendations by health experts to practice social distancing during the early stages of the COVID-19 pandemic. We use a quasi-experimental design to estimate the causal effect of Fox News...

Standard search models assume that consumers actively decide on the order, identity, and number of products they search. We document that online, a large fraction of searches happen in a more passive manner, with consumers merely reacting to online advertisements that do not allow them to choose...

In the months before the 2020 U.S. election, several campaign websites added pre-checked boxes (defaults), automatically making donations into recurring weekly contributions unless donors unchecked them. Since these changes occurred at different times for different campaigns, we measure the...