Computational Model Library

An agent-based model of adaptive cycles of the spruce budworm

Julia Schindler | Published Sat Aug 18 11:06:30 2012 | Last modified Sat Apr 27 20:18:21 2013

This is an empirically calibrated agent-based model that replicates spruce-budworm outbreaks, one of the most cited adaptive cycles reported. The adaptive-cycle metaphor by L. H. Gunderson and C. S. Holling posits the cross-case existence of repeating cycles of growth, conservation, collapse, and renewal in many complex systems, triggered by loss of resilience. This model is one of the first agent-based models of such cycles, with the novelty that adaptive cycles are not defined by system- […]

The dynamic agent-based model of market of single commodity and process of setting of prices

Mark Voronovitsky | Published Sat Jan 24 10:29:25 2009 | Last modified Sat Apr 27 20:18:48 2013

The dynamic agent based model of system which turn out the self-adjusting system, are considered in this text.

What is stable: the large but coordinated change during a diffusion or the small but constant and uncoordinated changes during a dynamic equilibrium? This agent-based model of a diffusion creates output that reveal insights for system stability.

This is the model for a paper that is based on a simulation model, programmed in Netlogo, that demonstrates changes in market structure that occur as marginal costs, demand, and barriers to entry change. Students predict and observe market structure changes in terms of number of firms, market concentration, market price and quantity, and average marginal costs, profits, and markups across the market as firms innovate. By adjusting the demand growth and barriers to entry, students can […]

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