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Population Pyramid & Demographic Model

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Presentation on theme: "Population Pyramid & Demographic Model"— Presentation transcript:

1 Population Pyramid & Demographic Model

2 Population Pyramid: Stage 1
Expansive Concave sides High Birth Rate High death rate Short life expectancy Rapid fall in each upward age group due to high DR

3 Population Pyramid: Stage 2
Expansive Straight sides Still high birth rate Falling death rate Slightly longer life expectancy Fall in DR so more people living into middle age

4 Population Pyramid: Stage 3
Stationary Convex sides Declining birth rate Low death rate Long life expectancy An increasing proportion of the population is in the 65+ age group

5 Population Pyramid: Stage 4/5
Contractive Convex sides Very low birth rate Low death rate Longer life expectancy Higher dependency ratio

6 Demographic Transitional Model

7 Demographic Transition model Compared to Population Pyramid

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