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Few studies of educational barriers in developing countries have investigated the role of children’s vision problems, despite the self-evident challenge that poor vision poses to classroom learning an...
Utilizing the 5% Public Use Micro Data Sample (PUMS) from the 2000 Census of Population and 2000-2006 waves of the National Health Interview Survey (NHIS), we examine differences in disability, self-r...
Theoretically, a shortage of males in a local marriage market may influence the formation, quality, and trajectory of unmarried parent relationships. To test these hypotheses, I combine city-level sex...
Few previous studies have explored whether defined contribution retirement saving plans offer sufficiently diversified investment menus, though it is likely that these menus significantly shape worker...
Using data of literacy skills among adults aged 26 to 35 from the International Adult Literacy Survey, we compare the degree of literacy gaps between those who completed tertiary education and those w...
The Toba represent one of the many indigenous groups inhabiting the Gran Chaco of South America. They currently live in communities with different degrees of acculturation. We present here a prelimina...
The purpose of this study is to investigate the relationship between early life socioeconomic status, household structure and adult all cause and cause-specific mortality in Finland during the latter ...
Our aims were to demonstrate that natural selection is operating on contemporary humans, predict future evolutionary change for specific traits with medical significance, and show that for some traits...
This paper examines how marital and fertility patterns have changed along racial and educational lines for men and women. Historically, women with more education have been the least likely to marry an...
We discover and document errors in public use microdata samples ("PUMS files") of the 2000 Census, the 2003-2006 American Community Survey, and the 2004-2009 Current Population Survey. For women and m...
One of the most interesting features of the Chilean pension system is that approximately two-thirds of all retirees purchase annuities, resulting in annuitization rates much higher than in other count...
This study evaluates the effect of Chile’s pension system rules and regulations on individuals’ contribution and working decisions. In 1980 Chile was the first country to switch from a pay-as-you-go s...
Many HIV testing programs in Africa and elsewhere aim to reduce risk-taking behaviors by providing individuals with information about their own HIV status. This paper examines how beliefs about own HI...
Purpose. This study explores the social, biological, and genetic determinants of depression in later life. It adds complexity to the idea that later life depression is a natural outgrowth of vascular ...
In this paper we document the fertility policies for remarried couples in the People's Republic of China, and investigate their effects on the women's first marriages. Our evidence suggests that the c...

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