Increasing evidence shows that when adolescents feel cared for by people at their school and feel like a part of their school, they are less likely to use substances, engage in violence, or initiate sexual activity at an early age. However, specific strategies to increase students' connectedness to school have not been studied. This study examined the association between school connectedness and the school environment to identify ways to increase students' connectedness to school. Data from the in-school and school administrator surveys of the National Longitudinal Study of Adolescent Health (75,515 students in 127 schools) and hierarchical linear models were used to estimate the association between school characteristics and the average level of school connectedness in each school. Positive classroom management climates, participation in extracurricular activities, tolerant disciplinary policies, and small school size were associated positively with higher school connectedness.

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A censored Exact Affine Stone Index incomplete demand system is estimated for 23 packaged foods and beverages and a numéraire good. Instrumental variables are used to control for endogenous prices. A half-cent per ounce increase in sugar-sweetened beverage prices is predicted to reduce total calories from the 23 foods and beverages but increase sodium and fat intakes as a result of product substitution. The predicted decline in calories is larger for low-income households than for high-income households, although welfare loss is also higher for low-income households. Neglecting price endogeneity or estimating a conditional demand model significantly overestimates the calorie reduction.

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