20.2: Demography and Population
- Page ID
- 1122
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Population Growth
Country | Population (in millions) | Fertility Rate | Mortality Rate | Sex Ratio Male to Female |
---|---|---|---|---|
Afghanistan | 31.8 | 5.4% | 14.1% | 1.03 |
Sweden | 9.7 | 1.9% | 9.6% | 0.98 |
United States of America | 318.92 | 2.0% | 8.2% | 0.97 |
Demographic Theories
Malthusian Theory
Zero Population Growth
Cornucopian Theory
Demographic Transition Theory
Changes in U.S. Immigration Patterns and Attitudes
Summary
References
Glossary
- carrying capacity
- the amount of people that can live in a given area considering the amount of available resources
- cornucopian theory
- a theory that asserts human ingenuity will rise to the challenge of providing adequate resources for a growing population
- demographic transition theory
- a theory that describes four stages of population growth, following patterns that connect birth and death rates with stages of industrial development
- demography
- the study of population
- fertility rate
- a measure noting the actual number of children born
- Malthusian theory
- a theory asserting that population is controlled through positive checks (war, famine, disease) and preventive checks (measures to reduce fertility)
- mortality rate
- a measure of the number of people in a population who die
- population composition
- a snapshot of the demographic profile of a population based on fertility, mortality, and migration rates
- population pyramid
- a graphic representation that depicts population distribution according to age and sex
- sex ratio
- the ratio of men to women in a given population
- zero population growth
- a theoretical goal in which the number of people entering a population through birth or immigration is equal to the number of people leaving it via death or emigration