Adam Smith's The Invisible Hand: The Feedback Structure of Markets. From Sterman JD Business Dynamics p170 Fig 5-26. A price-mediated resource allocation system..

HANDY Model of Societal Collapse from Ecological Economics Paper 

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

This model shows the structure and operation of a simple economy. It can represent economic systems at different levels of abstraction (e.g. a single good, a group of goods, multiple groups, & an "economy.")

This model has one significant difference from Model 4. The fractional consumption rate table serves the purpose of demonstrating the effects of changes in the fractional consumption rate (or the converse the fractional rate of saving) from 100% to less-than 100% to more-than 100%.

It demonstrates dramatically the effects of significant changes in consumption rates.

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

Challenge p.212 Business Dynamics, Sterman

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

A simulation model that shows the relationship between the mountain biking trails in derby and the the effect it has on the tourism, 

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

This model is made to illustrate the components that impact profitability on a basic level. 

WIP Ideas from Science Special Issue May 2014

Investigations into the relationships responsible for the success and failure of nations. This investigation was prompted after reading numerous references on the subject and perceiving that *Why Nations Fail: The Origins of Power, Prosperity, and Poverty* by Acemoglu and Robinson seem to make a great deal of sense.

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.

Based on the Market and Price simulation model in System Zoo 3, Z504. In this model the profit calculations were not realistic. They were based on the per unit profit, which does not take items not sold into account. Also the model was not very clear on profit since it was included in the total production costs and consequently in the unit costs and subsequently profit was calculated by subtracting unit costs of the market price. Thus profit had a double layer which does not make the model better accessible. I have tried to remedy both in this simplified version.

An initial study of the economics of single use coffee pods.

An initial study of the economics of single use coffee pods.