The US NATIONAL INTELLIGENCE COUNCIL released a study GLOBAL TRENDS 2030: ALTERNATIVE WORLDS. The talking points about demographics are as follows:
Rapid extensions of life expectancy likely: global deaths from communicable diseases projected to drop by more than 40 percent.
Some countries, particularly in Sub-Saharan Africa and South Asia, will still have youthful populations, but demographic arc of instability will narrow on both east and west flanks.
“Aging” countries face the possibility of decline in economic growth. Increased migration will spread to emerging powers.
Urbanization set to grow to almost 60 percent.
Starting at page 20 of the FULL REPORT is Megatrend 3: Demographic Patterns.
On page 24 is a table on the ‘Demographic Window of Opportunity’ for various countries.