demographic transition
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World Population Growth: A 20th Century Explosion
Global Studies 9 - Damon
Terms to Know
• Demographic: relating to population
• Crude Birth Rate (CBR): live births per 1000 people per year
• Crude Death Rate (CDR): deaths per 1000 people per year
• Rate of Natural Increase (RNI): births - deaths per 1000 people per year
What Has Happened in Most Developed Countries That Has
Not Happened in Many Developing Countries?
The Demographic Transition
The Classic Stages of Demographic Transition
The Classic Stages of Demographic Transition
Stage 1 Stage 2 Stage 3 Stage 4
Naturalincrease
The Classic Stages of Demographic Transition
Stage 1 Stage 2 Stage 3 Stage 4
Time
Birth rate
Death rate
The Classic Stages of Demographic Transition
Time
Stage 1 Stage 2 Stage 3 Stage 4
Naturalincrease
Birth rate
Death rate
Note: Natural increase is produced from the excess of births over deaths.
What Causes Death and Birth Rates to Fall?
• Death Rates fall with improvements in:– Health care– Hygiene– Sanitation– Food supply
What Causes Death and Birth Rates to Fall?
• Death Rates fall with improvements in:– Health care– Hygiene– Sanitation– Food supply
• Birth Rates fall with:– Birth control (available and affordable)– Education, esp. of women– Industrialization– Economic opportunity– Increased standard of living
Correlation to Population Pyramids
Correlation to Population Pyramids
Stage 1
Stage 2
Stage 3
Stage 4
No modern countries remain in Stage 1
What Stage of the Demographic Transition Are These Countries In?
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