1.
Activity Space: the space within which daily activity occurs
2.
Brain Drain: Large-scale emigration by talented people.
3.
Chain Migration: migration of people to a specific location because relatives or members of the same nationality previously migrated there
4.
circulation: short-term, repetitive, or cyclical movements that recur on a regular basis
5.
counterurbanization: Net migration from urban to rural areas in more developed countries.
6.
distance decay function: The diminishing in importance and eventual disappearance of a phenomenon with increasing distance from its origin.
7.
emigration: migration from a location
8.
forced migration: permanent movement compelled usually by cultural factors
9.
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.
10.
guest worker: a person with temporary permission to work in another country
11.
immigration: migration to a location
12.
internal migration: permanent movement within the same country
13.
international migration: permanent movement from one country to another
14.
interregional migration: movement from one region of a country to another
15.
intervening obstacle: An environmental or cultural feature of the landscape that hinders migration.
16.
intraregional: movement within a region
17.
migration selectivity: Only people exhibiting certain characteristics in a population choosing to migrate.
18.
migration stream: A constant flow of migrants from the same origin to the same destination.
19.
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
20.
mobility: the quality of moving freely
21.
net migration: the difference between the level of immigration and the level of emigration
22.
pull factors: factors that induce people to leave old residences
23.
push factors: factors that induce people to leave old residences
24.
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
25.
suburbanization: The process of population movement from within towns and cities to the rural-urban fringe.
26.
urbanization: an increase in the percentage and in the number of people living in urban settlements
27.
voluntary migration: permanent movement undertaken by choice
