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.

Exploring social psychology theory for modelling farmer decision-making

James Millington | Published Tue Sep 18 16:16:25 2012 | Last modified Sat Apr 27 20:18:32 2013

To investigate the potential of using Social Psychology Theory in ABMs of natural resource use and show proof of concept, we present an exemplary agent-based modelling framework that explicitly represents multiple and hierarchical agent self-concepts

Universal Darwinism in Dutch Greenhouses

Julia Kasmire | Published Wed May 9 13:40:57 2012 | Last modified Sat Apr 27 20:18:51 2013

An ABM, derived from a case study and a series of surveys with greenhouse growers in the Westland, Netherlands. Experiments using this model showshow that the greenhouse horticulture industry displays diversity, adaptive complexity and an uneven distribution, which all suggest that the industry is an evolving system.

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.

Model to assess factors that influence local communities compliance with protected areas policies

Gustavo Andrade | Published Mon Nov 21 05:50:54 2011 | Last modified Sat Apr 27 20:18:40 2013

We built a model using R,polr package, to assess 55 published case studies from developing countries to determine what factors influence the level of compliance of local communities with protected area regulations.

This model is intended to explore the effectiveness of different courses of interventions on an abstract population of infections. Illustrative findings highlight the importance of the mechanisms for variability and mutation on the effectiveness of different interventions.

CITMOD A Tax-Benefit Modeling System for the average citizen

Philip Truscott | Published Mon Aug 15 06:10:15 2011 | Last modified Sat Apr 27 20:18:25 2013

Must tax-benefit policy making be limited to the ‘experts’?

The various technologies used inside a Dutch greenhouse interact in combination with an external climate, resulting in an emergent internal climate, which contributes to the final productivity of the greenhouse. This model examines how differing technology development styles affects the overall ability of a community of growers to approach the theoretical maximum yield.

A haystack-style model of group selection to capture the essential features of colony foundation for queens of the ant based on observation of the ant Pogonomyrmex californicus.

Evolution of shedding games

Marco Janssen | Published Sun May 16 21:20:17 2010 | Last modified Sat Apr 27 20:18:32 2013

This simulates the evolution of rules of shedding games based on cultural group selection. A number of groups play shedding games and evaluate the consequences on the average length and the difficulty

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