The model starts in 1900. In the year 2000 you get the chance to set a new emission target and nominal time to reach it. Your aim is to have atmospheric CO2 stabilize at about 400 ppmv in 2100. From Sterman, John D. (2008) Risk Communication on Climate: Mental Models and Mass Balance. Science 322 (24 October): 532-533.
Relative Control is one of the four generic archetypes developed by Eric Wolstenholme and maps to the Balancing Loop with Delay, Indecision, Limits to Results, Drifting Goals and Escalation Systems Archetypes.
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.
Initial causal loop diagram for the influences leading to the acceptance of Systems Thinking. This is the evolving version. You can compare this with IM-1948, which is the original, if you wish.
This model is an attempt to understand the interactions within an economy in an attempt to determine where the leverage points are to stimulate an economy.
Underachievement is one of the four generic archetypes developed by Eric Wolstenholme and maps to the Limits to Growth, Tragedy of the Commons, Attractiveness Principle, Growth and Underinvestment and Growth and Underinvestment with a Drifting Standard Systems Archetypes.
An introduction to what seems to be our typical approach to dealing with problems that arise unexpectedly when we're focused on dealing with other immediate issues.
It's relatively well understood that you can't be all things to all people. Somewhere one has to make choices. An Attractiveness Principle Systems Archetype is essentially a Limits to Growth Systems Archetype with multiple limits, all of which can not be addressed equally.
Simple bathtub model to show the difference between Stock and Flow. Run the model with various values for filling and draining to see the implications.
While understanding the interacting components responsible for the situation is important it is even more important to understand the stakeholders as they are the ones responsible for the interacting components being the way they are.
