World Population Aging 2009

As the proportion of the world’s population in the older ages continues to increase, the need for improved information and analysis of demographic ageing increases. Knowledge is essential to assist policy makers define, formulate and evaluate goals and programmes, and to raise public awareness and support for needed policy changes.

This report provides an overview of population ageing worldwide, focusing on trends relevant for public policy. Particular attention is given to the course of the ageing process, which has not been the same in all countries. There has been considerable variation in the timing, levels and patterns of population ageing.

The report includes:

• The demographic determinants and speed of population aging;
• The changing balance among age groups;
• The demographic profile of the older population;
• The socio-economic characteristics of the older population.

http://www.un.org/esa/population/publications/WPA2009/WPA2009_WorkingPaper.pdf