Changes

=== Demographics and an economy ===

=== Demographics and an economy ===

''See also:'' [[Demography]]

''See also:'' [[Economics]]

[[Demography]] is the study of human populations, and is a major specialty in the disciplines of sociology, economics, history, geography, statistics and epidemiology. Demography studies such factors as population size and distribution over time and space, using rates of birth, death, marriage and fertility, as well as emigration and immigration.

[[Demography]] is the study of human populations, and is a major specialty in the disciplines of sociology, economics, history, geography, statistics and epidemiology. Demography studies such factors as population size and distribution over time and space, using rates of birth, death, marriage and fertility, as well as emigration and immigration.