Part 1 demonstrates Picture primitives and Links to create representations of interactions. These are made visually attractive because the Picture primitives are overlay'd with images.
There are limits to what one can infer from a qualitative model. It is typically beyond the capacity of humans to infer the behavior of complex situations with 2 or more feedback loops.
Enabling a Better Tomorrow is a systemic approach for developing a systemic strategy which may be employed to intervene in a current situation to effect the desired results while minimizing the likelihood of creating new problems in the process.
Part 2 demonstrates labeling of links as well as putting elements of the model in a folder. A number of previously developed models are also presented to provide an idea of what's possible.
The limits to results structure endeavors to bring a balance between a current state and a desired state though more often than not the action is limited by some constraint. See also Archetypes.
Once I get the formulas and get this working unfold the story and exercise the 2 stock model and then surface the other two stocks and exercise the mode then.
Add variables so I can use sliders to control the multipliers in the flows and the initial values of the stocks.
The Exponential Growth Archetype is a reinforcing structure which promotes exponential growth. This is one of the two foundation archetypes. The other being the goal seeking structure. See also Archetypes.
The limits to growth structure is based on the basic growth structure. And, as should be obvious, nothing grows forever as growth requires resources. Those required resources become a limits to growth.
A Growth and Underinvestment structure is simply an elaborated Limits to Growth structure where the growth inhibitor is part of another Balancing Loop with an external standard and some delay. The real nasty thing about this structure is that the two Balancing Loops form a single Reinforcing Loop which inhibits growth.