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What is Demography?

  • Formal demography is the scientific study of the size, spatial distribution, and composition of population & the changes therein.
  • Social demography seeks to understand and explain the sources of population patterns. Social demography questions how social, cultural, economic, spatial, spatiotemporal, and policy factors alter demographic features of society.
  • Social demography examines the consequences of demographic change for societies, population subgroups, communities, families/households, and individuals.
  • Social demography considers how demographic patterns and processes interact with biological, psychological, behavioral, social, cultural, economic, policy, and/or spatial processes to affect individual, group, and population outcomes.
  • Key processes driving population dynamics:
    • Fertility
    • Health across the life course
    • Population aging
    • Mortality
    • International & internal migration
    • Family transitions
    • Social mobility
  • Common population indicators
    • Population size & density
    • Sex ratio
    • Age structure
    • Urbanicity/rurality
    • Racial/ethnic composition
    • Various incidence rates (e.g., fertility, mortality, illness)
    • Age- & group-specific incidence rates
    • Distribution of & disparities in health across populations
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