The digitization of content has led to the emergence of platforms that draw information from multiple sources. Policymakers are concerned that these new platforms threaten incentives for the production of original content. As a result, policymakers are contemplating regulations that would force...

Advertising is often criticized for presenting only partial or selective information about products. This criticism is particularly pronounced for health products, where large asymmetries in information may exist between consumers and firms. This paper explores how government restrictions...

This paper measures how high-speed internet affects an individual's ability to self-isolate during a global pandemic. Our data track the movements of 19 million mobile devices and whether a mobile device leaves its home that day. We examine compliance with state-level directives to remain at...

Online sources sometimes publish information that is false or intentionally misleading. We study the role of social networks and advertising on social networks in the dissemination of false news stories about childhood vaccines. We document that anti-vaccine Facebook groups disseminate false...

Online sources sometimes publish information that is false or intentionally misleading. We study the role of social networks and advertising on social networks in the dissemination of false news stories about childhood vaccines. We document that anti-vaccine Facebook groups disseminate false...

This paper investigates whether larger quantities of historical data confer a competitive advantage to firms that offer Internet search. We study how the length of time that search engines retained their server logs affected the apparent accuracy of subsequent searches. Our analysis exploits...