GEO 101 Lecture Notes - Lecture 4: Distance Decay, Environmental Disaster, Affordable Housing
23 Feb 2017
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Document Summary
First law of migration: the gravity model: places are connected through human interaction, interactions can be movements of. Migration: a permanent change in one"s place of residence to outside one"s community of origin, occurs at various spatial scales. Factors of place desirability: the size, composition, and spatial organization of migration flows tell us about the places involved, economic factors. Immigration: special case of migration across an international border, remittances. Money sent home from immigrants to support their families. Factors trigger the decision to move: pull factors. Migrant selectivity: influences effects of migration on places of origin and destination, factors. Length of residence: people are prone to move during their early adult years, between ages of 18 and. Distance decay: people do not move randomly across the landscape, the tendency for migration, or any other form of spatial interaction, decreases with distance, exerts more drag or friction on some kinds of moves than upon others.
