Based on a dialogue on the System Dynamics mailing list regarding the current level of acceptance of System Dynamics after it has been promoted for over 70 years I dredged up the following set of influences as a thought exercise. This is an example of a Drifting Goals Archetype.
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.
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.
Strategy is simply an idea as to how to move the current situation to the desired situation though it is seldom simple by any means. If the strategy is to be successful how numerous elements will be able support each other through the transition must be defined.
This model is derived from the paper "Nobody Ever Gets Credit for Fixing Problems that Never Happened: Creating and Sustaining Process Improvement" by Nelson P. Repenning and John D Sterman. See Insight 9781 for a simulation of this model.
The simple savings account is used to demonstrate the nature of a reinforcing loop. Change the initial amount and interest rate and run the model to see the implications of changing these values.
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.
You've probably heard the comment "It's the economy stupid!" Well I've finally concluded that when it comes to the economy "It's stupidity stupid!" might be a more appropriate phrase.
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
The issue of increasing private and government debt to banks is a major
concern after the financial crisis of 2008 (see Figure at link given below). In order to
understand why our society and government is increasingly indebted to banks we
need to understand how our current money system works and why we need a
continuous infusion of new money in a growing economy. “Why We Are Increasingly
Indebted To Banks?” investigates the reasons behind this and suggest a possible
solution.