How to get there from here: the demographic route to optimal population size.
Bouvier
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D000569:Americas; D001723:Birth Rate; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005069:Evaluation Studies as Topic; D005298:Fertility; D005544:Forecasting; D008017:Life Expectancy; D008136:Longevity; D009026:Mortality; D009656:North America; D011153:Population; D011156:Population Density; D011157:Population Dynamics; D011158:Population Growth; D012106:Research; D013223:Statistics as Topic; D014481:United States
Americas; Birth Rate; Critique; Demographic Factors; Developed Countries; Estimation Technics; Fertility; Fertility Measurements; Fertility Rate; International Migration; Length Of Life; Life Expectancy; Migration; Mortality; North America; Northern America; Optimum Population; Population; Population Dynamics; Population Growth--determinants; Population Projection; Population Size; Research Methodology; Stable Population; United States; Zero Population Growth