Sex ratios at birth in South Korea reached 116.5 boys per 100 girls in 1990, but have since declined. In 2007, sex ratios were almost normal, a development heralded as a sign that son preference and sex choice have vanished. However, normal sex ratios imply neither. We show that over the last 60...

Although the Civil War has attracted a great deal of scholarly attention, little is known about how different wartime experiences of soldiers influenced their civilian lives after the war. This paper examines how military rank and duty of Union Army soldiers while in service affected their...

Limited evidence regarding the effects of individual income and health on suicide was presented. We investigated how individual economic status and health conditions (chronic diseases and disabilities) affect the probability of suicidal death through an analysis of micro panel data constructed...

Korean Abstract: 인구변화로 인한 장기적인 노동투입의 감소는 노동공급규모의 지표에 따라 다를 것으로 전망된다. 현재와 같은 성별·연령별 노동공급패턴이 유지된다면 2050년의 취업인구와 총 노동시간은 각각 현재 수준의...

This study explores how technological, organizational, and managerial changes affected the labor-market status of older male manufacturing workers in early twentieth century America. Industrial characteristics that were favorably related to the labor-market status of older industrial workers...

This paper investigates patterns of socioeconomic difference in the wartime morbidity and mortality of black Union Army soldiers. Among the factors that contributed to a lower probability of contracting and dying from diseases were (1) lighter skin color, (2) a non-field occupation, (3)...

It is difficult to estimate accurately the contributions of capital inputs to agricultural production because data are available only for selected capital inputs and for selected places and years. The results based on using three major agricultural machines of the time (power tillers, automatic...

This paper explores how injuries, sickness, and geographical mobility of Union Army veterans while in service affected their post-service migrations. Wartime wounds and illnesses significantly diminished the geographical mobility of veterans after the war. Geographic moves while carrying out...