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CH 10: Population Estimates, Projections & Forecasts - Coggle Diagram
CH 10: Population Estimates, Projections & Forecasts
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3.) Components Methods:
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Components methods that include migration are: 1. The Components II Method, 2. The Administrative Records Method & 3. The Ratio Correlation Method
Cohort Survival Method- assumes a closed population in which net migration is set at zero and replaces having to use crude rates by using employs age-specific measures such as 1. age-sex structure, 2. age & sex-specific survival rates, 3. age specific fertility rates
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- Populations at a future date come from estimation, projection and forecasting.
- Nathan Keyfitz is one of the world's leading experts on population projection who believed that the object of projection was to better understand the past than to predict the future
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