We use observational data from 22 elementary schools and over 48,000 child-day observations to examine the relationship between the number of fruit and vegetable items and the consumption patterns of children during school lunch. We find that each additional fruit or vegetable item that is offered increases the fraction of children who eat at least one serving of fruits and vegetables by 12 percent. We also use our observational data to provide practical information about which items are most likely to be eaten by children during lunch and compare this to the cost and nutritional quality of these items.

Actual Production History (APH) yields play a critical role in determining the coverage offered to producers by the Risk Management Agency's yield-based crop insurance products. Using both county and individual insured unit data, we examine the impact of APH yield trends for Texas cotton and Illinois com. Our findings indicate that biases due to using simple average APH yields when yields are trending upward reduce the expected indemnity and actuarially fair premium rate. The estimated welfare effect also varies significantly with different commonly used detrending approaches. This study demonstrates that producer welfare can be enhanced through proper treatment of yield trends in crop insurance programs.

This paper explores the relationship between income and eating behavior. To do this we examine choice in two food categories: milk and soft drinks. These categories have varieties differing in health qualities but either no differences in cost or lower cost for the healthier types. By examining food choices when there are no measurable cost differences but clear health differences, we are able to isolate the association between income and healthy eating behavior. We find a negative association between income and dietary intake of higher-calorie types of milk and soft drinks. Our estimates are consistent across the five sets of the National Health and Nutrition Examination Survey and the Continuing Survey of Food Intakes by Individuals data that we study. For 2005 we estimate that an income increase of $10,000 is linked to a reduction in 377 calories from milk and 2,555 calories from soft drinks per year. Our results suggest that the cost of food may not be the only reason why low income people have less healthy diets.

This study investigates reasons for adoption of best management practices (BMP), crawfish farmers' participation in the Environmental Quality Incentives Program (EQIP), and economic impacts of BMP adoption using data from a 2008 survey of crawfish producers. Most-cited reasons for BMP adoption are farmers' perceptions of increases in profit and long-run productivity. Land tenancy, education, double-cropping or crop rotation, and proximity to a stream influence EQIP participation. Perceptions of economic profits depend on the practices used. Participation in EQIP negatively impacts farmers' perceptions of profitability from adopting BMPs. The results underscore the importance of economic incentives in promoting BMP adoption.

Consumers rely on experience and credence attributes when purchasing beef from retailers. It is essential for all beef industry sectors to recognize the complexity of consumer buying behavior. A hedonic model is estimated to determine if there are incentives to brand beef steaks, the types of brands that entertain price premiums, and the level of existing premiums. Most branded steaks garnered premiums along with organic claims, religious processing claims, and premium cuts. Factors influencing brand value were new brands targeting emerging consumer trends, brands with regional prominence, and brands positioned as special label, program/breed specific production, and store labels.

In recent years, many researchers have sought to measure the effects of adolescent soft drink consumption due to a suspected link with childhood obesity and other negative health outcomes. While most studies in the existing literature have focused on physical health outcomes, the current study seeks to analyze how providing soft drinks in vending machines affects adolescent in-school behavior and academics. The data for this analysis comes from a school district in which a subset of schools prohibited the sale of soft drinks in vending machines. Using this subset of schools as a treatment group, students at the treatment schools are compared with students at the schools that did not change their vending machine policies. A difference-in-differences estimation shows that the number of times a student was tardy to class decreased significantly at the treatment schools. Students also were less likely to be referred to the principal's office for behavior problems following the policy change. These results suggest that policies directed toward restrictions on soft drinks in school vending machines might improve behavioral outcomes for students.

This study examines the impact of adopting Bt corn on farm profits, yields, and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity. The model is estimated using nationwide farm-level survey data for 2005. Regression analysis confirms that Bt adoption is associated with increased variable profits, yields, and seed demand. However, the results of this analysis suggest that Bt adoption is not significantly related to insecticide use. This result may be due to the fact that insect infestation levels were lower in 2005 than they were in previous years.

Many scholars and activists are interested in the potential for school-based childhood nutrition programs to positively impact the U.S. agri-food system. This paper explores efforts of a national K-12 school food collaborative to procure more sustainably grown and healthful food products. After a review of literature on transaction cost theory and school food procurement, the paper examines the potential of strategic partnerships in a value chain framework to meet procurement change goals. Results from a qualitative study of two participating school districts suggest that partnerships can offer potential solutions to recurring procurement barriers found in previous research.

Rational choice theory commonly assumes that the presence of unselected choices cannot impact which among the remaining choices is selected—often referred to as “independence of irrelevant alternatives.” We show that such seemingly irrelevant alternatives influence choice in a school lunch setting. In these lunchrooms, we provide evidence that the presence of specific side dishes—trigger foods—can strongly increase the sales of unhealthy à la carte options, even when the trigger foods are not selected. This behavioral anomaly can be exploited to lead children to healthier choices. We also offer a method that can be used to identify such foods.

Direct and indirect attempts to increase parents' fruit and vegetable purchases have had little, if any, success. Most of the disappointing results are reported in the grocery environment. In this context, embedding messages with social meaning may have a significant impact on current campaigns. We use the focus theory of normative conduct as an alternative theoretical framework and suggest that social norms that are salient, easy to interpret, and easy to compare against individuals' behavior may improve current attempts to increase parents' fruit and vegetable purchases in retail environments.