this model shows the relationship between economic growth and government debt (just the bailout debt) and the mortgage default burden. At the current rates, the debt will never be paid off.

Regulation of resource allocation to production in response to inventory adequacy and delivery delay. A non-price-mediated resource allocation system. From Sterman JD Business Dynamics p172 Fig 5-27

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

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

Rating Matrix of S&P

Summary of UNEP ecosystems services CBA 2011 article by Wegner and Pascual

WIP Social determinants of health from Michael Marmot's  ABC 2016 Boyer Lectures on Social Justice and the Health Gap See US Data website for data and AIHW website for concepts. See also IM-83417 Marmot Essay 2017

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.

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)

Description for Each Simulation Tag:

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.