Population momentum refers to population growth at the national level that would occur even if levels of childbearing immediately declined to replacement level. For countries with above-replacement fertility (greater than 2.1 children per woman), population momentum represents natural increase to the population. For below-replacement countries, mo...
Found on
http://en.wikipedia.org/wiki/Population_momentum
(from the article `population`) An important and often misunderstood characteristic of human populations is the tendency of a highly fertile population that has been increasing ...
Found on
http://www.britannica.com/eb/a-z/p/95
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