Activity Space
the space within which daily activity occurs
Brain Drain
Large-scale emigration by talented people.
Chain Migration
migration of people to a specific location because relatives or members of the same nationality previously migrated there
circulation
short-term, repetitive, or cyclical movements that recur on a regular basis
distance decay function
The diminishing in importance and eventual disappearance of a phenomenon with increasing distance from its origin.
emigration
migration from a location
immigration
migration to a location
forced migration
permanent movement compelled usually by cultural factors
voluntary migration
permanent movement undertaken by choice
gravity model
A mathematical formula that describes the level of interaction between two places, based on the size of their populations and their distance from each other.
guest worker
a person with temporary permission to work in another country
internal migration
permanent movement within the same country
international migration
permanent movement from one country to another
intervening obstacle
An environmental or cultural feature of the landscape that hinders migration.
migration transition
change in the migration pattern in a society that results from industrialization, population growth, and other social and economic changes that also produce the demographic transition
migration stream
A constant flow of migrants from the same origin to the same destination.
migration selectivity
Only people exhibiting certain characteristics in a population choosing to migrate.
mobility
the quality of moving freely
net migration
the difference between the level of immigration and the level of emigration
push factors
factors that induce people to leave old residences
pull factors
factors that induce people to leave old residences
refugee
people who are forced to migrate from thier home country and cannot return for fear of persecution because of thier race, religion, nationality, membership of a social group, of political opinion
urbanization
an increase in the percentage and in the number of people living in urban settlements
suburbanization
The process of population movement from within towns and cities to the rural-urban fringe.
counterurbanization
Net migration from urban to rural areas in more developed countries.
interregional migration
movement from one region of a country to another
intraregional
movement within a region