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Lecture 5 -- aging

Lecture 5 -- aging - Population Aging and Public Support...

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September 14, 2009 Population Aging and Public Support
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Review: Standardization The crude (death) rate is equal to the sum of products of the age-specific death rates and proportionate shares (or weights) of population at each age. A standardized rate for a population uses the weights (p i /P) of standard population (e.g., age distribution) while the crude rate uses the weights of the population.
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Growth rates Percentage change Arithmetic appropriation of the annual rate of change (sometimes called annualized growth rate) Geometric (e.g., compounds daily, weekly, etc.) and Exponential Growth rates (continuous compounding) Doubling time (based on exponential growth rate)
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Population Aging The Issue: U.S. and global populations are aging rapidly Why? What are the demographic mechanisms? (formal demography) What are the social and economic implications? (social demography) What should we do?
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The Facts: U.S. and Global populations are aging rapidly
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12.4 16.0 16.0 16.4 16.4 16.5 16.7 16.9 17.0 17.1 17.2 17.3 17.8 18.6 19.5 19.5 United States Finland United Kingdom France Croatia Latvia Estonia Spain Portugal Belgium Bulgaria Sweden Greece Germany Italy Japan Sources: Carl Haub, 2006 World Population Data Sheet . The World’s 15 ‘Oldest’ Countries and the U.S.
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