LL601 is a genetically modified rice variety and unapproved for commercial use. Its presence was found in commercial shipments of U.S. rice in 2006. This article explores its impact on prices and volume marketed for both the United States and Thailand, the major export competitor. The results...

This study investigates whether peers are a contributing factor in childhood body-weight outcomes. Using an instrumental variables method on exogenously assigned peers, we find that the weight of peers within the same grade and school significantly impacts body mass index (BMI) z-score of an...

This study investigates whether peers are a contributing factor in the increase in childhood obesity rates, and whether peer effects vary by race, gender and residential neighborhood. We control for the commercial food environment around schools and residence when estimating peer effects given...

We examine the role of peer effects in childhood obesity outcomes by investigating whether obesity rates among the highest graders in a public school has an effect on obesity rates among younger grades. We use a panel dataset with obesity prevalence measured at the grade level. Our data are from...

This paper investigates how the Fresh Fruits and Vegetable Program (FFVP), a national program which provides funding for the distribution of free fresh fruits and vegetables to students in participating schools, affects childhood obesity. Using a panel data set, we combine matching methodology...

We examine the effect of proximity to large grocery stores and convenience stores on consumption of different food groups among a sample of children enrolled in Head Start preschools. Food store proximity is measured in two ways: (1) as the distance from the census block of residence to the...

We present an analysis of markets for fresh strawberries, blueberries, blackberries and raspberries in the United States during 2008–2011. We use weekly panel data covering supermarket purchases in 52 cities. The primary goal is to estimate demand elasticities for fresh berries and...