Demography Glossary

The number of live births per 1,000 women in a particular age group during a given year.

A temporary marked increase in the birth rate, particularly the surge in births in Western countries after World War II (1946-1964).

A complete enumeration and survey of a population, typically conducted by a government at regular intervals.

A group of individuals sharing a common demographic experience, most often those born in the same year or period.

The number of live births per 1,000 persons in a population during a given year.

The number of deaths per 1,000 persons in a population during a given year.

The accelerated economic growth potential arising from a shift in a population's age structure toward a larger working-age proportion.

The historical shift from high birth and death rates to low birth and death rates accompanying socioeconomic development.

The ratio of the economically dependent population to the working-age population.

The act of leaving one's country or region of origin to settle permanently in another.

The shift in leading causes of morbidity and mortality from infectious to chronic diseases as a population develops.

The biological capacity to reproduce, as distinct from fertility which refers to actual reproductive performance.

The actual reproductive performance of a population, measured by the number of live births.

The movement of people into a country or region to which they are not native in order to settle there.

The number of deaths of children under one year of age per 1,000 live births in a given year.

The average number of years a person is expected to live from a specified age, typically from birth.

A statistical table presenting the mortality experience of a population and the probability of surviving to each age.

The idea that population grows geometrically while resources grow arithmetically, leading to inevitable checks on population growth.

Deaths as a component of population change; the frequency of death in a given population.

The difference between the number of births and deaths in a population, excluding the effect of migration.

The difference between the number of immigrants entering and emigrants leaving a geographic area.

The tendency for population growth to continue beyond the point when replacement-level fertility is achieved.

A graphical illustration showing the age and sex distribution of a population.

The level of fertility at which a population exactly replaces itself from one generation to the next, approximately 2.1 in developed nations.

The average number of children a woman would bear over her lifetime if current age-specific fertility rates persisted.