Population and Society

Revenstein's first law

Migrants only proceed a short distance. Migrants enumerated in a certain center of absorption will grow less as distance from the center increases.
the Gravity Model

Migration stream depends on 3 conditions: population size at origin (Pi), population size at destination (Pj), and the geographic distance between i and j, or Dij

Mij = (PiPj/Dij) * K. (k is a constant.)
Migrants proceeding long distances generally go by preference to

one of the great centers of commerce or industry
An increase in the means of locomotion and a development of manufactures and commerce have led to

an increase in immigration

Author

Ninimew

270471

Card Set

Population and Society

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Updated

2014-04-13T23:10:38Z

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