Owners of intellectual property or mere sponsors of an idea (e.g., authors, security issuers, sponsors of standards) often need to persuade potential buyers or adopters of the worth of their property or idea. To this purpose, they often resort to more or less independent certifiers. This paper...

To better understand the potential economic repercussions of a bioterrorist attack, this paper explores the effects of several catastrophic epidemics that struck American cities between 1690 and 1880. The epidemics considered here killed between 10 and 25 percent of the urban population studied....

Concern about declining growth in crop yields has renewed debates about the ability of biotechnology to promote food security. While numerous experimental and farm-level studies have found that adoption of genetically engineered crops has been associated with yield gains, aggregate and...

This paper estimates the impact on consumer behavior of a firm's voluntary disclosure of information. Specifically, we study the impact of Starbucks' disclosure of calorie information on its menu boards in June 2013. Using data on over 250,000 consumers' visits to specific restaurant chains, we...

Markets with asymmetric information will often employ third-party certification labels to distinguish between higher and lower quality transactions, yet little is known about the effects of certification policies on the evolution of markets. How does the stringency in quality certification...

The United States, in 2018, implemented a nationwide requirement that chain restaurants disclose calorie information on their menus and menu boards. This law was motivated by concern that consumers underestimate the number of calories in restaurant food, but it remains unclear the extent to...

We study the impact of mandatory calorie posting on consumers' purchase decisions, using detailed data from Starbucks. We find that average calories per transaction falls by 6%. The effect is almost entirely related to changes in consumers' food choices--there is almost no change in purchases of...

This essay reviews the theoretical and empirical literature on quality disclosure and certification. After comparing quality disclosure with other quality assurance mechanisms and describing a brief history of quality disclosure, we address three key theoretical issues: (i) Why don't sellers...

Comparing the safety of prescription drugs over time is difficult due to the paucity of reliable quantitative measures of drug safety. Both the academic literature and popular press have focused on drug withdrawals as a proxy for breakdowns in the drug safety system. This metric, however, is...

The Nutrition Labeling and Education Act (NLEA) imposed significant changes in the information about calories and nutrients that manufacturers of packaged foods must provide to consumers. This paper tests whether the release of this information impacted body weight and obesity among American...