Determinants of Population Growth
Population growth is determined by four factors, births(B), deaths(D), immigrants(I), and emigrants(E). Using a formula expressed as
∆P≡(B-D)+(I-E)
In other words, the population growth of a period can be calculated in two parts, natural growth of population (B-D) and mechanical growth of population (I-E),in which Mechanical growth of population is mainly affected by social factors, e.g. the advanced economies are growing faster while the backward economies are growing slowly even with negative growth.
Read more about this topic: Population Growth
Famous quotes containing the words population and/or growth:
“The broad masses of a population are more amenable to the appeal of rhetoric than to any other force.”
—Adolf Hitler (1889–1945)
“Humour is the describing the ludicrous as it is in itself; wit is the exposing it, by comparing or contrasting it with something else. Humour is, as it were, the growth of nature and accident; wit is the product of art and fancy.”
—William Hazlitt (1778–1830)