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...

This paper investigates whether larger quantities of historical data affect a firm's ability to maintain market share in Internet search. We study whether the length of time that search engines retained their server logs affected the apparent accuracy of subsequent searches. Our analysis...

Advertisers use online customer data to target their marketing appeals. This has heightened consumers' privacy concerns, leading governments to pass laws designed to protect consumer privacy by restricting the use of data and by restricting online tracking techniques used by websites. We use the...

The COVID-19 pandemic has gravely disrupted the world's economy and killed millions of people. A safe and effective vaccine was developed remarkably swiftly, but as of yet uptake of the vaccine has been slow. This paper explores one potential explanation of delayed adoption of the vaccine, which...

Online advertising is increasingly subject to antitrust scrutiny, but there is a lack of empirical analysis on whether the large offline advertising market disciplines the online advertising market. Here, we summarize two empirical analyses that begin to fill this void by showing an effect of...