A systems model of the relationships amongst economic situation, health situations and Covid-19 in Burnie, Tasmania.

WIP concepts from Rachel Turner's Book Neo-liberal Ideology

Rating Matrix of S&P

A simple budget planning system.  What additional complexities can you add?

You now have the basics for defining your Action Model / Systemigram.  

1. Gather all the information you have so far:  PQR, CATWOE and the Root Definition.
2. Write down three groups of activities:  
   1. Things that concern what is being transformed (where you are starting).
   2. Activities that do the actual transforming.
   3. Activities dealing with the transformed entity
3. Connect the activities with arrows that indicate the dependencies.
4. For the SSM approach, add the three monitoring and control activities like that shown here (from the SSM reading)

This paper aims at describing a case where system dynamics modeling was used to evaluate the effects of information and material supply lead-time variation on sales contributions margins and operating cash conversion cycle of a commodity export business.  An empirical dynamic model, loaded with econometric theory of price effect on competitive demand, was used to describe the input data.  The model simulation outputs proved themselves relevant in analyzing the complex interconnections of multiple variables affecting  the profitability in a commercial routine, supporting the decision process among sales managers.

The economy is a self-organizing system that needs continuous growth and a constant inflow of energy and materials in order to maintain itself.  Absence of growth will make the system fragile, and economic contraction could lead very quickly to its collapse. These are characteristics of dissipative systems that apply to the free market economy. Another characteristic is that economic activity will unavoidably lead to the generation of waste heat, greenhouse gases and waste materials that the system must expel into its environment, making the system unviable in the present context of global warming and increasing oil prices.

The simplified graphic representation of the economy shows how it is basically profits that generate the funds for the resources needed to guarantee that the system can continue to grow. Loans do not fulfil this function, since loans must be repaid from profit and credit institutions will be reluctant to extend loans if they fear their profits are endangered by the inability of creditors to generate enough income to meet interest payments. So the system depends on private companies and blind market forces. However, society can no longer rely on a system that is blindly guided by the profit motive and that is to a large degree responsible for much of the environmental problems that now afflict us. The system cannot continue in its present self-reinforcing growth mode. Governments can and must step in to fulfil their responsibility and fundamentally reform a system that has become harmful and that is driven exclusively by profit.

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there is a distributed net of independent carriers interacting geographically to build continuous supply chain. We model the dynamics of the system, assuming scarcity of available agents, under the condition that the total path must be no longer then X defined economically.

Barangay IRAWAN Systems Model