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3.9 Demographic Transition

1 min readdecember 29, 2022

Karla Jauregui Sandoval

Karla Jauregui Sandoval


AP Environmental Science ♻️

252 resources
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Demographic Transition Model

Diagram Courtesy of Max Roser

https://firebasestorage.googleapis.com/v0/b/fiveable-92889.appspot.com/o/images%2Fdemo.JPG?alt=media&token=1031c171-20de-499c-9ed9-41e8bdb703b3
Stage 1 ➪ High CBR, High CDR, low growth rate 
Stage 2 ➪ High CBR, lowering CDR, high growth rate 
Stage 3 ➪ Lowering CBR, lowering CDR, lowering growth rate 
Stage 4 ➪ Low CBR, low CDR, low/negative growth rate
Stage 5 ➪ Rising CBR, low CDR, stable or slowly increasing growth rate
Pre-industrial Stage 
Transitional Stage 
Industrial Stage 
Post-industrial Stage 
Birth rate is high to compensate for high infant mortality rate. Less developed countries are in this stage. Women have many children and unfortunately many do not survive into adulthood.
Industrialization begins. Access to food and improved healthcare lowers death rate. 
Death rate drops due to improved medicine and modernization. Mostly developed countries are in this stage.
Birth rate drops to equal zero population growth. If the birth rate falls below death rate, than population will decrease 
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