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In the 21st century, the populations of the world’s nations will display large and long-lived changes in age structure. Many of these began with fertility change and are amplified by declining mortality and by migration within and between nations. Demography will matter in this century not by force of numbers, but by the pressures of waves of age structural change. Many developing countries are in relatively early stages of fertility decline and will experience age waves for two or more generations. These waves create shifting flows of people into the key age groups, greatly complicating the task of managing development, from building human capabilities and creating jobs to growing industr...
Demographic projections, statistical tables, international, countries with population of 10 million or more, 1981 - includes 1950- 1980 trends.
Recent demographic estimates for the countries and regions of the world.
Evaluates migration in light of the migrant's social network