Migration
Mobility is most generalized term that refer to all types of movement
Journeying each day to work or school
weekly visit to local shops
annial trips to visit relatives who live in a different state
A permanent move to a new location donstitues migration
Emigration is migration from one location
immigration is migration to one location
Ravenstein's "laws" for the distance that migants typically move
most migrants relocate a short distance and remain within the same country
long-distance migrants to other countries head for major centers of economic activity
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