Demographic indicators_Lucía de la Torre Veguillas 2nA

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Demographic indicators_Lucía de la Torre Veguillas 2nA

Migration

Immigrants: people that live their own country to go to live to another place.

Emigrants: people that come to live to a place from another country.

It can cause a place to gain or lose population

Natural population growth

It's the difference between the number of births and deaths in one place.

Formula: number of births-number of deaths/number of inhabitants

Life expentancy

It's the number of years a person is expected to live

The live expentancy in men and women: Men: 80 years old Women: 86 years old

Fertility rate

It's the estimated average number of children a woman will have in her life

Formula: number of births/number of women between 15 and 49 years old ·1000

- To ensure generational replacement of the population, women need to have at least 2 children.

Death Rate

It's the number of deaths in a population in a year

Formula:number of deaths/number of inhabitants

Factors that affect this indicator: - Medical advances is preventing illnesses - Better diet and nutrition - Improved hygiene - Healthier lifestyles - Better working conditions - Longer life expectancy

Birth Rate

It's the number of births in a population in a year

Formula: number of births/number of inhabitants · 1000

Factors that affect this indicator: - Women have their first baby at later age. - Women join the workforce. - The widespread use of contraceptives. - The cost of bringing up children. - Changes in social values. - A decline in the young population.