demography intro Flashcards
what is demography
study of populations
in what ways does demography study populations
Size
Growth/Decline
Distribution
Composition - Age/Sex/Race
Characteristics
Components of Change
in what ways is demography important
globalization
the environment
politics
public planning
market research
investment strategies
business
what are the components of change in demography
birth
death
migration
demographic accounting equation
Pt+1 = Pt + Bt – Dt + Mt,in – Mt,out
population at time = (births at time) - (deaths at time) + (in migrants at time) - (out migrants at time)
natural increase in pop equation
Births – Deaths (Bt - Dt)
net migration of pop equation
Mt,in – Mt,out
3 main studied subjects in demography
fertility
mortality
migration
3 main demographic characteristics
age composition
sex composition
population distribution
