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In demography, the crude birth rate of a population is the number of childbirths per 1000 persons per year.

In some other contexts, birth rate may be taken to mean the average number of children born to each woman. 2.1 children per woman is considered a "magic number" for the birth rate, as this is the rate at which a population will remain roughly constant, barring immigration (the additional 0.1 children is for those who die young). This statistic is often examined as part of political economy. See also sub-replacement fertility for more.

This measurement is usually applied to a country, or a specific ethnic group.

An overly high birth rate can lead to social, political, and/or environmental problems.

A low birth rate can mean bankruptcy of the economy if the aging population is very much larger than the upcoming next generation. This is especially true when the high cost of medicine for senior citizens is factored in.

Topics: Birth Rate Population Children Number Political High Economy...

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