Population pyramid is the geometrical presentation of
the age and sex structure of population of a country.
When we compare the population structure of two
countries - one should be a developed country and one a developing country, the
nature of population trend over the last 30 to 40 years shows a similar
pattern. The figures given earlier show
the average population structure of a developed and a under developed (or developing)
country.
Developing countries generally tend to experience
relatively rapid rates of growth of population; the possible effects of this
for such countries are increased dependency, reduced per capita and standard of
living.
Features of a developed
country’s population pyramid
Tall in height because of high aging population
Relatively narrow bottom because of low level of birth
rate
Relatively broad
top because of high life
expectancy
Features of a under developing
country’s population pyramid
Short in height because of low level of aging
population and high death rate
Very wide bottom because of high level of birth rate
Narrow top because of the very low level of life
expectancy
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