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Stage 1
-High BR
-High DR
-Very low natural increase rate
Stage 2
-High BR, but DR drops, Grandparents!
-Pyramid= Wide Base, thinner as you get higher
-Ex: Sub-Saharan Africa
Stage 3
-Birth rate slows down, DR the same low
-Industrialized
-Pyramid= Wider in the middle ages and have
a pear shape.
Stage 4
-birth rates get lower, death rates rise as people are getting older.
-Natural increase rates (NIR) in these countries are close to zero.
-Ex: United States
-Pyramid= Skyscraper Shape
Stage 5
-Negative rate of natural increase
-pro-natalist policies to try and stunt the population decrease by incentivizing having children.
-Upside down triangle
Note
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