Thailand has adopted a labeling policy on genetically modified (GM) food items since 2003 that if their ingredients are derived from soybean and corn, a mandatory label is required when their GM content reaches a 5% threshold level. However, critics disagree and demand a mandatory lower...

While confounding factors typically jeopardize the possibility to use observational data to measure peer effects, field experiments offer the possibility to obtain clean evidence. In this paper we measure the output of four randomly selected groups of individuals who were asked to fill letters...

Social networks rely on sharing engaging content for their users. Since continued production of user-generated content is critical to their success, they have constructed a variety of tools to motivate new content creation, to facilitate user discovery of new content, and to provide attention...

We study how salary history disclosures affect employer demand, and how salary history bans shape hiring and wages. We show how these effects depend on the properties of the labor market, and we measure the key properties using a novel, two-sided field experiment. Our field experiment features...

Between 1970 and the early 2000s, there was a revolution in support for the use of field experiments to evaluate social programs. Focusing on the welfare reform studies that helped to speed that transformation in the United States, this chapter describes the major challenges to implementing...

The study of education in developing countries has been transformed by the rapid increase in the feasibility and prevalence of field experiments over the past 15 years. This paper comprises three main sections. First, it illustrates the very broad range of research questions regarding education...