gravity model
See Also: attractiveness
[geography] A model that assumes that the influence of phenomena or populations on each other varies inversely with the distance between them.
Gravity Model: analysis that determines how consumers will "gravitate" toward one product or service provider over another.
gravity model A methodology used in the geography, engineering and social sciences to model the behavior of populations.
Gravity model A mathematical model based on an analogy with Newton's gravitational law which has been used to account for aggregate human behaviors related to spatial interaction, mainly migration, traffic flows and shopping activities.
feedback loops) von Thünen (space around a point) Horton's Law Christaller (hierarchy of hexagons) demographic expansive/relocative Hägerstrand's innovation diffusion (logistic curve) Diffusion modeled as a Markovian process using gravity models ...
Spatial interaction or "gravity models" estimate the flow of people, material or information between locations in geographic space.
Main NGA (was NIMA) page on Earth gravity models
Technical Manual DMA TM 8358.1 - Datums, Ellipsoids, Grids, and Grid Reference Systems at the National Geospatial-Intelligence Agency (NGA) ...
NIMA helped create Earth Gravity Model 96 (EGM96)
EGM96 was part of the enhancement done to the World Geodetic System (WGS84).
For example, one store might be considered more popular and a "bigger draw" than another (Gravity Modeling).
The world simulation includes GPS ephemeris, a digital terrain elevation database (DTED), gravity models, natural terrain landmarks/targets, manmade targets, a ground sensor deployment map, simulated flight test profile, ...
Threshold rings, equal competition analysis, and gravity modeling are additional analyses you can conduct to better understand your customer locations and their spending habits relative to your store locations.
 See also: Model, Geographic, Area, Location, Network
  
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