2.4-2.9 Flashcards
a value comparing the working to the nonworking parts of a population
dependency ratio
people under 15 or over 64
dependent population
the average number of children who would be born per women of that group in a country, assuming every women lived through their childbearing age
Total fertility rate (TFR)
attempts to decrease the number of births in a country and are often used by developing countries
Anti-natalist policies
programs designed to increase the fertility rate
Pronatalist policies
when population would grow faster than food production the world’s population becomes unsupportable
overpopulation
People who accept Malthusians theory as the truth of life
Neo-Malthusians
A theory that food production would grow arithmetically(Steadily each generation) But, population would increase exponentially. Then the worlds population would be unsupported
Malthusian theory
suggested more people there are , the more hands there are to work, rather than more mouths to feed
Boserup theory
This model is an expansion of the demographic transition model and explains the changing death rates and more common causes of death within society
Epidemiological transition model
A model that shows how the decline in death rates produces a growth in population, and eventually a decline in birth rates.
Shows five typical stages of population change that countries experience as they modernize. S1- High stationary S2- Early expanding S3- Late expanding S4 Low stationary S5- Declining
Demographic transition model
This occurs because though fetility rates have declines, people are living longer, this results in population continuing to grow for 20-40 more years
Demographic momentum
the percentage at which a country’s population is growing or decreasing, without the impact on migration
Rate of natural increase (RNI)
the time it takes to double in size, be estimated by using an equation known as the Rule of 70
Population doubling time
the average number of years people live
Life expectancy
the number of children who die before their first birthday
Infant mortality rate
people who moved into the country
Immigrants
people who moved out of the country
emigrants
Future population= Current population+ ( number of births-number of deaths) + (Number of immigrants - number of emigrants)
Demographic balancing equation
the number of deaths per year per 1000 people
Crude death rate (CDR)
the number of live births per year per 1000 people
Crude birth rate (CBR)
