OBJECTIVE To estimate the number of people worldwide requiring daily assistance from another person in carrying out health, domestic or personal tasks. METHODS Data from the Global Burden of Disease Study were used to calculate the prevalence of severe levels of disability, and consequently, to estimate dependency. Population projections were used to forecast changes over the next 50 years. ...

Abstract Consensus in the international community has grown over the past two years that HIV/AIDS poses a threat to development, security, and economic growth. A few studies over the last ten years have looked at the impact on workers and their employers. With momentum building to prevent new infections and treat those already afflicted, more information is needed to assess economic impact...

Several related demographic trends are occurring in developing countries: youth comprise a large portion of populations, fertility rates are declining, and urban dwellers are increasing. As fertility rates decline and populations age, the decline in the ratio of young dependents to working age adults is expected to free up household resources, which can be invested in human capital, including y...

Using a dataset that covers 5 decades (1960–2009), we show that the main determinants of China's household savings rate are disposable income (measured by its reciprocal) and the old-age dependency rate. The income growth rate and young age dependency rate have a limited role. Our findings support the Keynesian saving hypothesis instead of Modigliani’s life cycle hypothesis, although precaution...

This paper examines the effects of age dependency ratio (the young age, old-age and overall age) urbanization on renewable non-renewable energy consumption in Brazil, India, China, South Africa, considering panel data from 1990 to 2019. We control economic growth foreign direct investment inflows as key factors demand function using Stochastic Impacts by Regression Population, Affluence Technol...

despite the care taken to ensure the quality of date collected by enumeration and sampling, the final tabulation will sometimes give obvious indication of errors in basic information. evaluation of these errors furnishes those who use such a study and sampling. more general, the finding in these studies should be helpful to others that conduct surveys. in order to compare the age composition of...