Torsten Hägerstrand’s Spatial Innovation Diffusion Model
Sean M. Bergin
Submitted By: sbergin
Submitted: Sep 14, 2012
Last Updated: Mar 23, 2013
70 Downloads (3 Downloads in the last 3 months)
The purpose of this model is to understand the processes which create a “nebula-distribution,” a common spatial pattern. This model explores the way that the diffusion of ideas across a social network might produce this pattern. The model attempts to recreate the chronologic and geographic patterns produced in a historical example, the diffusion of the adoption of government subsidies for improved pasture on farms in Sweden. Two related models were outlined and studied by the author. The first model, referred to as the isotropic model, begins with a uniform population number and a 5x5 grid. This model is designed to show how innovation might spread on a limited scale. The second model, the anisotropic model, initializes with different numbers of agents on each patch, a larger more complex spatial area and is intended to recreate a specific case study. The models rely on real-world data to create some of the models’ parameters (e.g. probability distributions used in the model are calculated from actual migration data and telephone call data) and attempt to compare real world distributions of the spread of ideas with those predicted by the model.
This is a replication of a previously published model:
Hägerstrand, Torsten (1965) ‘A Monte Carlo Approach to Diffusion’, Archives Européennes de Sociologie, 6(1), pp. 43-67.
Cite This Model:
Bergin, Sean M. (2012, October 2). "Torsten Hägerstrand’s Spatial Innovation Diffusion Model" (Version 2). CoMSES Computational Model Library. Retrieved from: http://www.openabm.org/model/3163/version/2
This model has been Certified that it meets the CoMSES Guidelines for Modeling Best-Practices. Certification involves a review process by which a model is examined to ensure it has been coded and documented according to the community's best-practices. For more information on the Model Review process and Certification:
Model Version: 2 [Latest]
Platform: NetLogo 5.0
Programming Language: Logo (variant)
Operating System: Platform Independent
Licensed Under: GNU GPL, Version 2
Instructions on Running This Model:
One important thing to note is that the netlogo file actually replicated two related models. The user can choose to run the isotropic or anisotropic model from the gui.
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