Differentials between blacks and whites in birth weights and prematurity and stillbirth rates have been persistent over the entire twentieth century. Differences in prematurity rates explain a large proportion of the black-white gap in birth weights both among babies attended by Johns Hopkins...

This paper documents differences in body size between white, black, and Indian mid-nineteenth century American men and investigates the socioeconomic and demographic determinants of frame size using a unique data set of Civil War soldiers. It finds that over time men have grown taller and...

Debilitating events could leave either frailer or more robust survivors, depending on the extent of scarring and mortality selection. The majority of empirical analyses find frailer survivors. I find heterogeneous effects. Among severely stressed former Union Army POWs, which effect dominates 35...

<DIV>Winner of the 1998 Paul A. Samuelson Award given by TIAA-CREF, <I>The Evolution of Retirement</I> is the first comprehensive economic history of retirement in America. With life expectancies steadily increasing, the retirement rate of men over age 64 has risen drastically. Dora L. Costa looks at...</i></div>

<DIV><P>The conditions for sustainable growth and development are among the most debated topics in economics, and the consensus is that institutions matter greatly in explaining why some economies are more successful than others over time. Probing the long-term effects of early colonial differences on...</p></div>

<DIV>The twentieth century saw significant increases in both life expectancy and retirement rates-changes that have had dramatic impacts on nearly every aspect of society and the economy. Forecasting future trends in health and retirement rates, as we must do now, requires investigation of such...</div>

When the Fair Labor Standards Act was first implemented, a 5% reduction in the length of the standard workweek reduced by at least 18% the proportion of men and women working more than 40 hours per week. This analysis, based on monthly time series data from 1935–41 BLS surveys and...