Using data from the National Longitudinal Study of Adolescent Health, this study examines the relationship between adolescent virginity and four measures of school attachment: out-of-school suspensions, unexcused absences from school, affinity for school, and preference to attend college....

Migraine headache is a growing problem for U.S. servicemembers deployed to Iraq and Afghanistan and has been linked to substantial negative socioeconomic consequences. However, there has been no comprehensive examination of the relationship between combat exposure and migraine headache or its...

"Extending the work of Card and Krueger, we find minimum-wage increases (1988-2003) did not affect poverty rates overall, or among the working poor or among single mothers. Despite employment growth among single mothers, most gainers lived in nonpoor families and most working poor already had...