The growth of >300 million children <5 y old was mildly, moderately, or severely stunted worldwide in 2010. However, national estimates of the human capital and financial losses due to growth faltering in early childhood are not available. The researchers quantified the economic cost of growth faltering in developing countries.
An estimated 2·1 million individuals are newly infected with HIV every year. Cross-sectional and longitudinal studies have reported conflicting evidence for the association between education and HIV risk, and no randomised trial has identified a causal effect for education on HIV incidence. The researchers aimed to use a policy reform in secondary schooling in Botswana to identify the causal effect of length of schooling on new HIV infection.
