Recent studies provide conflicting evidence on the connection between ethnic or racial neighborhood segregation and outcomes. Some studies find that residence in an enclave is beneficial, some reach the opposite conclusion, and still others imply that any relationship is small. One hypothesis is...

This paper uses decennial Census data to examine trends in immigrant segregation in the United States between 1910 and 2000. Immigrant segregation declined in the first half of the century, but has been rising steadily over the past three decades. Analysis of restricted access 1990 Census...

Suicide rates among youths aged 15-24 have tripled in the past half-century, even as rates for adults and the elderly have declined. And for every youth suicide completion, there are nearly 400 suicide attempts. This paper examines the dynamics of youth suicide attempts and completions, and...

Americans have become considerably more obese over the past 25 years. This increase is primarily the result of consuming more calories. The increase in food consumption is itself the result of technological innovations which made it possible for food to be mass prepared far from the point of...

Americans have become considerably more obese over the past 25 years. This increase is primarily the result of consuming more calories. The increase in food consumption is itself the result of technological innovations which made it possible for food to be mass prepared far from the point of...

Simple partial equilibrium models suggest that income increases at the high end of the distribution can raise prices paid by those at the low end of the income distribution. This prediction does not universally hold in a general equilibrium model, or in models where the rich and poor consume...