Factors that affect population growth 4.2
Formula of population change
The use of crude rates that are deaths/births per 100 people ion the given year.
(Birth-immigration) - (Deaths+emigration)
Migration
Environmental reasons, jobs and security, wealth, freedom of opression are all factors that can motivate the migration or immigration of the given place.
Population crashes can affect humans drastically.
Mortality
Life expectansy indicates the health of the population
Infant mortality rates are declining.
Women are helthyer in general due to multiple factors, therefore, they tend to have higher life expectancies.
Mortality has declined recently therefore population growth increases even if the growth rate declination is bigger.
Fertility
Total fertility rate: The number of children who would be born per woman (or per 1,000 women) if she/they were to pass through the childbearing years bearing children according to a current schedule of age-specific fertility rates.
TFR increase in less developed nations
cost of education decreases
children are included in job force
infant rates have higher mortality rates
More children means support because there are no pensions.
Lack of access to education and employment especially for women = start families at younger ages.