Arithmetic Population Density
The population of a country or region expressed as an average per unit area.
Structure of a population in terms of age, sex and other properties. (ex. marital status and education)
Crude Birth Rate (CBR)
The total number of live births in a year for every 1,000 people alive in the society.
Crude Death Rate (CDR)
The total number of deaths in a year for every 1,000 people alive in the society.
Total Fertility Rate (TFR)
The average number of children a woman will have throughout her childbearing years.
Demographic Transition (cycle)
A model of the effect of economic development on population growth based on births, deaths, and other statistics.
The number of years needed to double a population, assuming a constant rate of natural increase.
Growth pattern in which the individuals in a population reproduce at a constant rate.
The distance that can be measured with a standard unit length, such as a mile or kilometer.
Movement that has a closed route and is repeated annually or seasonally. (ex. nomadism)
Movement from an area, especially migration, from your native country in order to settle in another.
When people are removed from their countries and forced to live in other countries because of war, natural disaster, and government. (ex. Atlantic Slave Trade, Jewish Diaspora)
Movement in which people relocate in response to perceived opportunity; not forced.
Movement within a nation-state, such as westward and southward movements in the US.
Migration to a distant destination that occurs in stages. (ex. from farm to nearby village and later to a town and city)
Migration back to an original area in which people had left. (ex. migration increases after natural disasters, yet many eventually return after a time)
The presence of a nearer opportunity that greatly diminishes the attractiveness of sites farther away.
The diminishing in importance and eventual disappearance of a phenomenon with increasing distance from its origin.
Refugees encamped in a host country or host region while waiting for resettlement.
Refugees who have crossed 1 or more international boundaries during their dislocation.
Laws and regulations of a state designed specifically to control immigration into that state.
Expansive Population Policy
Government policy that encourages large families and raises the rate of population growth.
Restrictive Population Policy
Government policy designed to reduce the rate of natural increase. (ex. Chinese can only have 1 child)