These models and simulations have been tagged “Modeling”.
This is the model of the collaborative model development process which is being developed in a collaborative method to help understand what guidelines might be developed to aid in the model development.
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In CIV4 a City's Health stock is a flourishing yet complex condition which acts as a City attribute intended to limit growth. Positive and negative feedback impacts City Health flow and derives from many sources: city's site, buildings, wonders, civics, resources, population, etc.
What drives this flow? When a cities unhealthiness is greater than its health limit, then for each point of population above the health limit consumes 3 food apiece rather than the standard 2 pieces. This further depletes city resources leading to starvation. In addition the city’s health also affects the rate at which it accumulates food.
This is the companion model for the paper written by Gene & Scott for the 2011 System Dynamics Conference.