GEOG 001 Lecture Notes - Lecture 9: Cultural Lag, Distance Decay
15 Jul 2020
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Document Summary
Spatial diffusion is the spread or movement of an innovation over space, from one individual or group to another. Innovation implies changes to a culture that result from ideas created within the social group itself and adopted by the culture. Centers of innovation based on size and interaction. The process by which a characteristic spreads from a center of origin to more distant places. Relocation diffusion: innovation is carried to new areas by migrating individuals or populations (change in location but not number of people using) Expansion diffusion: spread from one place to others after direct or indirect contact (change in location and number by spreading to more people and groups) Contagious diffusion: rapid, widespread contact diffusion (shows distance decay. Hierarchical diffusion: diffusion to large or important areas first, followed by effect) (clustered spread) diffusion to lesser areas (ex. Spread of christianity) (first to important and then to smaller places) Uses monte carlo modeling (a random process)
