Four Phases of a Demographic Transition
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In your own words, define the Demographic Transition and describe the four phases. Is the population stable, growing, or declining in each of the four phases? According to demographers, what factors led to a decline in the CDR and a decline in the CBR?
Not all countries have moved through all four phases of the Demographic Transition. Briefly describe living conditions and environmental impacts in developed countries that have reached Phase IV in contrast to these conditions or impacts in developing countries that remain in earlier phases.
Finally, if Phase IV of the Demographic Transition is a goal for developing countries, what programs or initiatives might assist in progress toward this goal?
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Solution Summary
Programs to bring out Phase IV in developing countries
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During the first phase of demographic transition, both the CBR and the CDR are high, but they pretty much balance each other and there is no steady population growth. A population can remain in this state for long periods of time. It corresponds to human populations before industrialization. Phase one is sometimes called the "High Stationary Stage" ("high" birth and death rates; "stationary" rates; "stationary" total population).
In the second stage, also called the mortality transition, the CDR begins to decline, and for a while the CBR exceeds the CDR, creating a population growth. Advances in medicine and hygiene brought about by the Industrial Revolution caused death rates to decline. An ...
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