20 Questions
What is indicated by a constrictive pyramid in a population?
Fewer young people than old people
What is the purpose of looking at age-specific mortality rates?
To compare mortality rates within a specific age range
What is the net migration rate?
The number of people entering the country minus the number of people leaving the country
What is internal migration?
The movement of people within their own country
What are the three main factors that contribute to the growth rate of a country?
Fertility, migration, and mortality
What is the result of a country's population decreasing due to more deaths and emigrations than births and immigrations?
Negative growth rate
What is the difference between emigration and immigration?
Emigration is the movement of people out of a country, while immigration is the movement of people into a country
What is a life table or mortality table?
A table that shows the probability of someone dying given their age
Why is it important to consider all three factors of population growth?
Because all three factors contribute to the growth rate of a country
What can be a result of internal migration in a country?
Urbanization
What is generally true for countries with a constrictive pyramid?
They are very developed countries.
Why is it useful to compare age-specific mortality rates?
To see how many people are dying within a specific age range.
What is the main reason for people to migrate from their country of birth to a new country?
For a potential better life.
What is the result of subtracting the number of deaths and emigrations from the number of births and immigrations?
The growth rate of the country.
What is the relationship between urbanization and internal migration?
Urbanization is the result of internal migration.
What can be inferred about a country with a high mortality rate when comparing it to a country with a low mortality rate?
The country with a high mortality rate has a lower life expectancy.
What is the primary limitation of using an all-encompassing mortality rate to compare countries?
It does not account for age-specific mortality rates.
What is the relationship between urbanization and internal migration?
Internal migration is a cause of urbanization.
What can be a consequence of a negative growth rate in a country?
A shift in the country's population pyramid.
What is the primary reason why people migrate from their country of birth to a new country?
To pursue better job opportunities or a higher standard of living.
Study Notes
Population Dynamics
- Population dynamics studies how a country's or region's population changes, considering factors that increase and decrease the population to determine the total growth rate.
- Three factors contribute to the total growth rate: fertility, migration, and mortality.
Fertility
- Fertility refers to the natural ability of humans to have babies, which adds to the population.
- Birth rate is measured as the number of births per 1,000 people in a year.
- Total fertility rate is the number of children a woman is predicted to give birth to in her childbearing years.
- A total fertility rate of:
- Less than 2 decreases the population.
- Exactly 2 neither adds nor subtracts from the population.
- More than 2 increases the population.
- A total fertility rate of:
Migration
- Migration looks at the number of people moving into and out of countries, which changes the population of a specific country or region.
- Immigration is the movement of people into a country, increasing the population.
- Emigration is the movement of people out of a country, decreasing the population.
- Migration rates are measured per 1,000 people in the country.
Mortality
- Mortality refers to the fact that everyone eventually dies, decreasing the population.
- Mortality rates are measured as the number of deaths per 1,000 people in a year.
- Age-specific mortality rates provide a more accurate comparison between countries.
- A life table or mortality table shows the probability of death given a person's age.
Population Growth Rate
- The population growth rate is calculated by adding the number of births and immigrations, and subtracting the number of deaths and emigrations.
- A negative growth rate occurs when the number of deaths and emigrations exceeds the number of births and immigrations.
Additional Factors
- Internal migration refers to people moving within their own country, affecting the economics or cultures of a country.
- Urbanization is often a result of internal migration, as people move from rural to urban areas.
- Surveys and records are used to estimate population changes, as it is not possible to get an exact headcount of all people in the world.
Population Dynamics
- Population dynamics studies how a country's or region's population changes, considering factors that increase and decrease the population to determine the total growth rate.
- Three factors contribute to the total growth rate: fertility, migration, and mortality.
Fertility
- Fertility refers to the natural ability of humans to have babies, which adds to the population.
- Birth rate is measured as the number of births per 1,000 people in a year.
- Total fertility rate is the number of children a woman is predicted to give birth to in her childbearing years.
- A total fertility rate of:
- Less than 2 decreases the population.
- Exactly 2 neither adds nor subtracts from the population.
- More than 2 increases the population.
- A total fertility rate of:
Migration
- Migration looks at the number of people moving into and out of countries, which changes the population of a specific country or region.
- Immigration is the movement of people into a country, increasing the population.
- Emigration is the movement of people out of a country, decreasing the population.
- Migration rates are measured per 1,000 people in the country.
Mortality
- Mortality refers to the fact that everyone eventually dies, decreasing the population.
- Mortality rates are measured as the number of deaths per 1,000 people in a year.
- Age-specific mortality rates provide a more accurate comparison between countries.
- A life table or mortality table shows the probability of death given a person's age.
Population Growth Rate
- The population growth rate is calculated by adding the number of births and immigrations, and subtracting the number of deaths and emigrations.
- A negative growth rate occurs when the number of deaths and emigrations exceeds the number of births and immigrations.
Additional Factors
- Internal migration refers to people moving within their own country, affecting the economics or cultures of a country.
- Urbanization is often a result of internal migration, as people move from rural to urban areas.
- Surveys and records are used to estimate population changes, as it is not possible to get an exact headcount of all people in the world.
Population Dynamics
- Population dynamics studies how a country's or region's population changes, considering factors that increase and decrease the population to determine the total growth rate.
- Three factors contribute to the total growth rate: fertility, migration, and mortality.
Fertility
- Fertility refers to the natural ability of humans to have babies, which adds to the population.
- Birth rate is measured as the number of births per 1,000 people in a year.
- Total fertility rate is the number of children a woman is predicted to give birth to in her childbearing years.
- A total fertility rate of:
- Less than 2 decreases the population.
- Exactly 2 neither adds nor subtracts from the population.
- More than 2 increases the population.
- A total fertility rate of:
Migration
- Migration looks at the number of people moving into and out of countries, which changes the population of a specific country or region.
- Immigration is the movement of people into a country, increasing the population.
- Emigration is the movement of people out of a country, decreasing the population.
- Migration rates are measured per 1,000 people in the country.
Mortality
- Mortality refers to the fact that everyone eventually dies, decreasing the population.
- Mortality rates are measured as the number of deaths per 1,000 people in a year.
- Age-specific mortality rates provide a more accurate comparison between countries.
- A life table or mortality table shows the probability of death given a person's age.
Population Growth Rate
- The population growth rate is calculated by adding the number of births and immigrations, and subtracting the number of deaths and emigrations.
- A negative growth rate occurs when the number of deaths and emigrations exceeds the number of births and immigrations.
Additional Factors
- Internal migration refers to people moving within their own country, affecting the economics or cultures of a country.
- Urbanization is often a result of internal migration, as people move from rural to urban areas.
- Surveys and records are used to estimate population changes, as it is not possible to get an exact headcount of all people in the world.
Learn about population dynamics, factors affecting growth rate, and fertility, including birth rates and total fertility rate.
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