Unit 2 - Concepts Flashcards
(36 cards)
What are the two main concepts involved in population growth?
Rate of natural increase (RNI) and the demographic equation
What does the demographic equation utilize to show population growth?
Birth rates, death rates, immigration, and emigration statistics
What is the birth rate also known as?
Natality
How is the crude birth rate (CBR) calculated?
Number of Live Births/Total Population x 1,000
Which countries typically have high birth rates?
Rural agricultural Third-World countries
Which countries typically have low birth rates?
Urbanized industrial and service-based economies
What is the death rate also known as?
Mortality rate
How is the crude death rate (CDR) calculated?
Number of Deaths/Total Population x 1,000
What factors contribute to high death rates in a country?
War, disease, or famine
What is the rate of natural increase (RNI)?
Annual percentage of population growth for that country
How is RNI calculated?
Birth Rate - Death Rate/10%
What does a negative RNI indicate?
The population has shrunk
What is the formula for Doubling Time?
70/Rate of Natural Increase
What is the Net Migration Rate (NMR)?
Number of immigrants minus number of emigrants for every thousand members of the population
How is the Population Growth Percentage Rate calculated?
(Birth Rate - Death Rate) + Net Migration Rate/10%
What is the total fertility rate (TFR)?
Estimated average number of children born to each female of birthing age (15 to 45)
What TFR is considered the replacement rate?
2.1
What does the dependency ratio represent?
Number of people too young or too old to work compared to the workforce
What is the demographic transition model (DTM)?
Theory of how population changes over time
What does the epidemiological transition model (ETM) account for?
Development due to increasing population growth rates caused by medical advances
What is the S-Curve of Population?
Describes rapid population growth followed by a plateau or decline
What characterizes Stage One of the demographic transition model?
Pre-agricultural societies with high birth and death rates
What is the RNI typically like in Stage One?
Generally low or negative
What characterizes Stage Two of the demographic transition model?
Agriculturally based economies with high birth rates and declining death rates