Computational Model Library

An Agent-Based Model of Internet Diffusion Under General and Specific Network Externalities

Filiz Garip | Published Fri Apr 27 20:56:06 2012 | Last modified Sat Apr 27 20:18:23 2013

Using nodes from the 2002 General Social Survey sample, the code establishes a network of ties with a given homophily bias, and simulates Internet adoption rates in that network under three conditions: (i) no network externalities, (ii) general network externalities, where an individual’s reservation price is a function of the overall adoption rate in the network, (iii) specific network externalities, where reservation price is a function of the adoption rate in individual’s personal […]

This ABM looks at the effect of multiple reviewers and their behavior on the quality and efficiency of peer review. It models a community of scientists who alternatively act as “author” or “reviewer” at each turn.

A simple model of random encounters of materials that produces distributions as found in the archaeological record.

Land-Livelihood Transitions

Nicholas Magliocca Daniel G Brown Erle C Ellis | Published Mon Sep 9 20:21:13 2013 | Last modified Fri Sep 13 14:25:53 2013

Implemented as a virtual laboratory, this model explores transitions in land-use and livelihood decisions that emerge from changing local and global conditions.

Smallholder Behavioural Decisions During Times of Drought Stress

Samantha Dobbie | Published Sun Sep 15 13:46:42 2013 | Last modified Sat Sep 27 10:35:00 2014

An empirical ABM of smallholder decisions in times of drought stress.

The Pampas Model is an Agent-Based Model intended to explore the dynamics of structural and land use changes in agricultural systems of the Argentine Pampas in response to climatic, technological economic, and political drivers.

Socio-spatial segregation in Salzburg, Austria

Andreas Koch | Published Fri Sep 25 06:37:44 2009 | Last modified Sat Apr 27 20:18:48 2013

This is a first preliminary simulation model to model segregation in the city of Salzburg, Austria.

Sociodynamica in a Browser

Klaus Jaffe | Published Sat Dec 24 16:38:33 2016

Sociodynamica simulates the emergence of cooperation and of economic interactions, showing the synergy achieved by division of labor, the working of shame, and a number of other features that mold the evolution of social cooperation.

Simulates the construction of scientific journal publications, including authors, references, contents and peer review. Also simulates collective learning on a fitness landscape. Described in: Watts, Christopher & Nigel Gilbert (forthcoming) “Does cumulative advantage affect collective learning in science? An agent-based simulation”, Scientometrics.

DIAL1.0

P Dykstra | Published Wed Nov 28 21:13:27 2012 | Last modified Sat Apr 27 20:18:30 2013

DIAL is a model of group dynamics and opinion dynamics. It features dialogues, in which agents put their reputation at stake. Intra-group radicalisation of opinions appears to be an emergent phenomenon.

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