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http://www.demographic-research.org/volumes/vol6/3/
doi:10.4054/DemRes.2002.6.3
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| Abstract Momentum, the population growth that occurs after a fall in fertility to replacement level, has long been appreciated as a factor in the future population growth of many countries. This paper argues that another aspect of growing populations - their high proportion rural - is also a source of significant growth, and refers to the additional growth attributable to geographical redistribution as spatial momentum.
Using simplifying assumptions, a model for analyzing spatial momentum is developed based on population composition, rates of growth, and levels of interregional migration. Calculations are then done using (i) hypothetical populations exhibiting a range of plausible demographic behavior, and (ii) the population of Mexico, 1970. The results show that spatial momentum can have a substantial impact on ultimate population size under commonly encountered circumstances. Author's affiliation Robert Schoen Pennsylvania State University, United States of America Keywords population growth, population momentum, spatial momentum, urbanization Word count (Main text) 3773 Other articles by the same author/authors (in Demographic Research)
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