- Birth rate: Number of babies born per number of adults per year/unit of time
- Death rate: Number of people that die per number of adults per unit of time
- Natural Increase: Birth rate minus the death rate
- Implications: A high rate of natural increase suggests a rapidly growing population, while lower rate of natural increase may mean the population is not growing as rapidly
- Infant mortality: Number of deaths of babies under 1 year of age per 100 live births, per year
- Life expectancy: the expected number of years of life remaining (at a given age)
What factors affect the birth rate?
- Diseases › having many babies because many will die before adulthood
- Poverty › labour force of children
- Lack of partners › IE. China: 114 boys for every 100 girls
What factors affect the death rate?
- Catastrophic events
- Natural Disasters
- Medical care / education › reduces death rate
- Natural death › old age (if a bigger portion of population is older the death rate is higher)