Sociology / Unit 10 Soc 1728 short lesson, about 20 seconds
Demographic Transition Theory
Captions available
The idea
Thompson (1929) and Notestein (1945) described four stages societies pass through while industrializing: high birth/death rates, falling deaths, falling births, then stable low rates.
In practice
Stage 2's death rate falls before its birth rate does, producing that stage's fastest population growth.
Where people slip
The four stages describe a pattern tied to industrialization, not a guarantee every society completes each stage identically.
Your place on the trail
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