Migration: Geographic and Social Psychological
Migration may be temporary, long term, or permanent.
Demographers and other social scientists have identified myriad reasons for these moves, individual and group, permanent and temporary, single-step and chain-like.
Internal migration
These are movements between subpopulations within a larger population, such as between states within the United States.
Immigration
This refers to movements from one general population to another, such as from one country to another.
Measuring Migration
Lowest level is move, next internal migration, and finally international migration.
In-mirgation
This is the movement of people into the territory occupied by a specific population or subpopulation for the purpose of residential relocation.
Out-Migration
This is the movement of people out of the territory occupied by a specific population or subpopulation for the purpose of residential relocation.
Net Migration
This is the movement of people out of the territory occupied by a specific population or subpopulation for the purpose of residential relocation.
Gross Migration
This is the sum total of all in-migrations and out-migrations experienced by a popu-lation during a given interval of time.
his total number of migrants is also referred to as the volume of migration in the geographic region of interest.
(I/P) × 1,000
(O/P) × 1,000
[(I – O)/P] × 1,000
[(I + O)/P] × 1,000