A to Z GIS | Explore this related guide, featuring updated terms and graphics and developed in coordination with Esri’s GIS Dictionary team.
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gravity model
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[geodesy, spatial analysis]
A model that assumes that the influence of phenomena or populations on each other varies inversely with the distance between them.
[social GIS]
The idea that the probability of a given consumer visiting and purchasing at a given site is some function of the distance to that site, the site's attractiveness, and the distance and attractiveness of competing sites.