GIS Dictionary

Definitions for GIS terms related to operations such as analysis, GIS modeling and web-based GIS, cartography, and Esri software.

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gravity model

See Also: attractiveness

  1. [geography] A model that assumes that the influence of phenomena or populations on each other varies inversely with the distance between them.
  2. [business] 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.