US infant death rates for 1960 to 1980 declined most quickly in (1) 1970 to 1973 in states that legalized abortion in 1970, especially for infants in the lowest 3 income quintiles (annual percentage change = -11.6; 95% confidence interval = -18.7, -3.8), and (2) the mid-to-late 1960s, also in low-income quintiles, for both Black and White infants, albeit unrelated to abortion laws. These result...

BACKGROUND Since the site of human subjects research has public health, regulatory, ethical, economic, and social implications, we sought to determine the global distribution and migration of clinical research using an open-access trial registry. METHODS We obtained individual clinical trial data including location of trial sites, dates of operation, funding source (United States government, ...

Researchers have estimated differential mortality across socioeconomic groups by classifying individuals using income in the previous year. The first problem with this strategy is reverse causation. Second, annual income is a noisy measure of permanent income. This paper tackles these two drawbacks by using better measures of lifetime earnings from administrative records to classify individuals...

Over the last fifty years, the income gap between rich and poor countries has grown. Between 1950 and 2000, annual per capita income in OECD countries tripled from US$7,300 to US$23,000, while income in Latin America only doubled, from US$3,000 in 1950 to US$6,200 in 2000. This is largely due to widening gaps in knowledge and technology. The North has continued to generate new technologies that...

In its thirteenth annual report to the Congress’ the Social Security Administration reaflirms its conviction that favorable economic conditions, such as those prevailing today, ogler an exceptional opportunity to develop a comprehensive program that will provide the basic essentials of social security for all persons in all parts of the Nation, A Nation with an annual income in excess of 6200 b...

climate change phenomenon is an important environmental challenge of the world that has increased its speed with the increasing extension of greenhouse gases and remote relationship phenomena. changes in precipitation level, drought occurrence and in the level of surface and groundwater resources are the recognized consequences of climate change. in order to study climate change phenomenon cons...

This paper uses the New Zealand Linked Income Supplement (LIS) to investigate the annual transitions in hourly earnings of working age individuals over the years 1997 to 2004. I first construct transition matrices for annual changes in weekly and hourly earnings, to enable comparison with previous analyses using New Zealand tax data. I then estimate the determinants of annual changes in hourly ...

climate change phenomenon is an important environmental challenge of the world. increasing extension of greenhouse gases and remote relationship phenomena accelerate the speed f climate change. changes in precipitation level, drought occurrence and changes in the level of surface and groundwater resources are the recognized consequences of climate change. in order to study consequences of clima...

Pre-eclampsia is associated with an unacceptable burden of death (maternal, fetal and neonatal), disability and health crises throughout the world [1]. However, it is in low and middle income countries (LMICs) that women, their families and their communities bear a disproportionate risk for developing the life-ending, life-threatening, and life-altering complications of pre-eclampsia; it is bel...