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GCSE Geography · key term
A model showing how birth rates, death rates and population growth change as societies develop and industrialise.
Used by AQA and OCR
Paper 2
Revise: The Demographic Transition Model and DevelopmentThe Demographic Transition Model (DTM) connects these changes. It shows the general pattern of birth rates and death rates as societies develop and industrialise. A birth rate measures live births per 1,000 people each year; a death rate measures deaths on the same basis, so the two can be compared directly.
Specification 7.1b · Paper 2, Paper 3
A model showing how birth rates, death rates and natural population change tend to change as a country develops.
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The Demographic Transition Model (DTM) describes how birth and death rates tend to change as a country develops. Both rates are measured per 1,000 people per year, allowing populations of different sizes to be compared. When the birth rate is higher than the death rate, there is natural increase; a wider gap means faster natural growth.