Development of a model to understand why we don't all get rich from investment accounts.

When the relevant interactions are identified it's appropriate to identify which elements are the responsibility of which stakeholders, which elements are part of the addressable interactions and which elements are part of the environment.

This model represents an elaboration of the Savings Account model to investigate the implications associated with intending to save money for retirement so an amount may be withdrawn monthly for living expenses.

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This is a sample model to demonstrate the Insight Maker Optimization function.

This is my first attempt at creating a simple Agent Based Simulation Model. Nothing fancy, just something that works.

This Savings Model is the third in the series. It illustrates the difference in savings over time for a doctor or for a skilled worker who went to a trade school.

• Traditional Career Model
• Loan Cost Model

When we're trying to understand a situation it is often very helpful to have a sense of the historical trends of several dimensions relevant to the situation.

All the insights you create will be with components from the Add Primitive menu and they will be connected together with Flows/Transitions or Links.

WIP Ideas from Science Special Issue May 2014

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relationships of a goal seeking balancing loop.

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From Jay Forrester 1971 book World Dynamics, the earlier, simpler version of the World 3 Limits to Growth Model. Adapted by Geoff McDonnell from Mark Heffernan's ithink version at Systemswiki.org.

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Diagram from a paper by James B. Rieley entitled "The Euro Financial Crisis: Making Sense of the Mess".

We are embedded in a larger system and unless we realize it an act accordingly we are likely to be the victim of it. From Introduction to System Dynamics: Overview by John Sterman

OK, we have a problem. Yet, do we really know what the problem is? More often than not we look at the symptoms, consider them the problem and attempt to fix them. This actually dooms us to failure because they're only symptoms.

The approach is to investigate the US Economy from a macro perspective, then the Public Sector in more detail and then expand out to the World Economy.

Drifting Goals archetype for pressure to lower standards impacting efforts to reduce pollution and improve current air quality.

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Examples of reinforcing and balancing loops enhanced with images to maybe them more visually engaging.

Because our problem solving approaches in today's reality don't produce very good solutions we end up continually dealing with unintended consequences which make the original problem worse or create new problems to be dealt with.

This model is an element of the effective problem solving program.

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A balancing loop depiction of employing a diet to reduce the gap between a desired weight and current weight.

Purpose: Employ the Mono Lake model adapted from "Modeling the Environment" by Andrew Ford as a basis for developing a set of guidelines to support asynchronous multi-user model development.

Mono Lake is an ancient inland sea on the eastern side of the Sierra Nevada. From a policy point of view Mono Lake is the story of how a handful of people began a campaign to save a dying lake

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Often times there are a number of parameters in a model you want to set to specific values and run the model to demonstrate a particular behavior. When there are several variables involved remembering the setup is often difficult and takes time. And can you demonstrate the behavior when you're not there? Developing scenarios with Button scripts is a quick way to overcome these difficulties.

This is an example of how to use Folders to enfold insights so others can unfold them later and develop an understanding of the relationships.

Mouse over elements for additional information.

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Faced with a performance gap the two most obvious responses are to work harder or work smarter. There are trade offs associated with each, some obvious, some not so obvious.

Derived from Nobody Ever Gets Credit for Fixing Problems that Never Happened: Creating and Sustaining Process Improvement by Repenning and Sterman.

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