Computational Model Library

Setting the Stage for Inequality

Timothy Dennehy | Published Mon Mar 11 21:52:57 2013 | Last modified Sat Apr 27 20:18:45 2013

How can a strictly egalitarian social system give way to a stratified society if all of its members punish each other for any type of selfish behavior? This model examines the role of prestige bias in constant and variable environments on the development of hierarchies of wealth.

Forager mobility and interaction

L S Premo | Published Thu Jan 10 06:21:14 2013 | Last modified Sat Apr 27 20:18:32 2013

This is a relatively simple foraging-radius model, as described first by Robert Kelly, that allows one to quantify the effect of increased logistical mobility (as represented by increased effective foraging radius, r_e) on the likelihood that 2 randomly placed central place foragers will encounter one another within 5000 time steps.

Feedback Loop Example: Wildland Fire Spread

James Millington | Published Fri Dec 21 12:26:52 2012 | Last modified Sat Apr 27 20:18:32 2013

This model is a replication of that described by Peterson (2002) and illustrates the ‘spread’ feedback loop type described in Millington (2013).

Adoption as a social marker

Paul Smaldino | Published Mon Oct 17 13:00:14 2016

A model of innovation diffusion in a structured population with two groups who are averse to adopting a produce popular with the outgroup.

9 Maturity levels in Empirical Validation - An innovation diffusion example

Martin Rixin | Published Wed Oct 19 13:42:28 2011 | Last modified Sat Apr 27 20:18:17 2013

Several taxonomies for empirical validation have been published. Our model integrates different methods to calibrate an innovation diffusion model, ranging from simple randomized input validation to complex calibration with the use of microdata.

Objective of our model is to simulate the emergence and operation of a technological niches (TN) in terms of actors’ interaction. A TN can be conceived as protected socio-economic space where radical innovations are developed and tested

This model is based on Joshua Epstein’s (2001) model on development of thoughtless conformity in an artificial society of agents.

Organizational Bundle Theory

Alhaji Cherif | Published Mon Dec 15 23:35:23 2008 | Last modified Sat Apr 27 20:18:40 2013

This model demonstrates the spread of collapse through a network. The model is abstract but has many applications in various fields.

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