We investigate sibling correlations in health status using the Panel Study of Income Dynamics and Bayesian methods that allow us to estimate the covariance structure of a system of latent variable equations. Across a battery of outcomes, we estimate that between 50% and 60% of health status can...

The typical measure used by researchers and school administrators to evaluate teachers is based on how the students' achievement increases after being exposed to the teacher, or based on the teacher's "value-added''. When teacher value-added is heterogeneous across her students, the typically...

In this paper, we use the death file from the Panel Study of Income Dynamics to investigate the relationship between county-level unemployment rates and mortality risk. After partialling out important confounding factors including baseline health status as well as state and industry fixed...

Notes that fewer people are now eligible for food stamps than in the past, but a higher proportion of those eligible chose to participate, and overall participation rates rose in 2000 after five years of decline. Although participation rates rose for most groups, they declined in 2000 for...