Circular equations WIP for Runy. Added several versions of the model. Added a flow to make C increase. Added a factor to be able to change the value 0.5. Older version cloned at  IM-46280
Methods Macroeconomics Economics
Circular equations WIP for Runy.

Added several versions of the model. Added a flow to make C increase. Added a factor to be able to change the value 0.5. Older version cloned at IM-46280
Clone of Circularity in Economic models
Runy Calmera
Insight diagram
Economic Cost-Benefit Analysis- Roadkill Mitigation
Lindsey Ohlin
11 months ago
Insight diagram
Tragedy of the Commons Climate Change
Steven Roderick
3
Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.
Lab 13
Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.
Lab 13 Base Model
Jessica LeDuc
6
An initial study of the economics of single use coffee pods.
Economics ISD Humanities Linear Economy Circular Economy
An initial study of the economics of single use coffee pods.
Coffee Pods ISD Humanities v 1.02
Kevin Collins
367
Economic capital growth in a system constrained by a non-renewable resource, Figure 37 from Thinking in Systems by Donella H. Meadows

Economic capital growth in a system constrained by a non-renewable resource, Figure 37 from Thinking in Systems by Donella H. Meadows
REM 221 Figure 37. Economic capital
Steve Conrad
19
To maintain economic wealth (roads, hospitals, power lines, etc.) power needs to be consumed. The same applies to economic activity, since any activity requires the consumption of energy. According to the Environmental Protection Agency, the burning of fossil fuels was responsible for 79 percent of
Global Warming Economy Energy Limits To Growth
To maintain economic wealth (roads, hospitals, power lines, etc.) power needs to be consumed. The same applies to economic activity, since any activity requires the consumption of energy. According to the Environmental Protection Agency, the burning of fossil fuels was responsible for 79 percent of U.S. greenhouse gas emissions in 2010. So whilst economic activity takes place fossil fuels will be burned and CO2 emissions are unavoidable - unless we use exclusively renewable energy resources, which is not likely to occur very soon. However, the increasing CO2 concentrations in the atmosphere will have negative consequences, such droughts, floods, crop failures, etc. These effects represent limits to economic growth. The CLD illustrates some of the more prominent negative feedback loops that act as a break on economic growth and wealth.  As the negative feedback loops (B1-B4) get stronger, an interesting question is, 'will a sharp reduction in economic wealth and unavoidable recession lead to wide-spread food riots and disturbances?'

LIMITS TO ECONOMIC GROWTH AND PROMINENT NEGATIVE FEEDBACK LOOPS
Hanns-Jürgen Hodann
4
Social determinants of health are economic and social conditions that influence the health of people and communities. These conditions are shaped by the amount of money, power, and resources that people have, all of which are influenced by policy choices. Social determinants of health affect factors
Health
Social determinants of health are economic and social conditions that influence the health of people and communities. These conditions are shaped by the amount of money, power, and resources that people have, all of which are influenced by policy choices. Social determinants of health affect factors that are related to health outcomes. Factors related to health outcomes include:
  • How a person develops during the first few years of life (early childhood development)
  • How much education a persons obtains
  • Being able to get and keep a job
  • What kind of work a person does
  • Having food or being able to get food (food security)
  • Having access to health services and the quality of those services
  • Housing status
  • How much money a person earns
  • Discrimination and social support
Determinates of a healthy population
Alex
6
Ocean/atmosphere/biosphere model coupled to economics-based simulations from Y2k on.
Lab 13
Ocean/atmosphere/biosphere model coupled to economics-based simulations from Y2k on.
Lab 13 Finish
Gabe Bowen
7
A clone of the Goodwin cycle IM-2010  with debt and taxes added, modified from Steve Keen's illustration of Hyman Minsky's Financial Instability Hypothesis "stability begets instability". This can be extended by adding the Ponzi effect of borrowing for speculative investment: http://www.jstor.org/
Economics

A clone of the Goodwin cycle IM-2010 with debt and taxes added, modified from Steve Keen's illustration of Hyman Minsky's Financial Instability Hypothesis "stability begets instability". This can be extended by adding the Ponzi effect of borrowing for speculative investment: http://www.jstor.org/stable/10.2307/4538470.

This model requires development and testing. Please contact the author if you are able to help.

Minsky Financial Instability Model
Neil Lancastle
4
WIP based mostly on Jan Toporowski 2013 vol 1 and 2018 vol 2 books on Michal Kalecki: An Intellectual Biography   Layout Consistent with David Wheat MacroEconomic model CLD Insight by Gene Bellinger  
Socialism Business Cycle Economics Causation Politics Methods Macroeconomics Development Capitalism
WIP based mostly on Jan Toporowski 2013 vol 1 and 2018 vol 2 books on Michal Kalecki: An Intellectual Biography  
Layout Consistent with David Wheat MacroEconomic model CLD Insight by Gene Bellinger  
Kalecki economic thought
Geoff McDonnell
Overview The model shows the industry connection and conflict between Forestry and Mountain Tourism in Derby, Tasmania. The objective of this simulation is to find out the balance point for co-exist.   How Does the Model Work? Both industries can provide economic contribution to Tasmania.
BMA708 System Dynamics Economy Tourism

Overview

The model shows the industry connection and conflict between Forestry and Mountain Tourism in Derby, Tasmania. The objective of this simulation is to find out the balance point for co-exist.

 

How Does the Model Work?

Both industries can provide economic contribution to Tasmania. Firstly, selling timbers through logging would generate income. Also, spendings from mountain bike riders would generate incomes. However, low tree regrowth rate can not cover up logging, which influences the beautiful vistas and riders' experiences. While satisfaction and expectation depend on vistas and experience, the demand of mountain biking would be influenced through repeat visits and world of mouth as well.

 

Interesting Insights

Although forestry can provide a great amount of economic contribution to Tasmania, over logging goes against ESG framework as well as creating conflict with mountain tourism. As long as the number of rider visits is stable, tourism can always provide a greater economic contribution compared to forestry. Therefore, the government should consider the balance point between two industries.

Simulation of Derby Mountain Bikes versus Forestry
Silong Lou
This is a toy model of an investment market. Households follow a simple ratio to invest in bonds or equities.  In part, the investment decision is stochastic, such that stock market returns are volatile, with equities more volatile than bonds and with a higher yield. As such, the system shows inc
Economics
This is a toy model of an investment market.

Households follow a simple ratio to invest in bonds or equities.  In part, the investment decision is stochastic, such that stock market returns are volatile, with equities more volatile than bonds and with a higher yield. As such, the system shows increasing volatility as the investment bubble grows.


Investment Markets
Neil Lancastle
A Tragedy of the Commons situation exists whenever two or more activities, each, which in order to produce results, rely on a shared limited resource. Results for these activities continue to develop as long as their use of the limited resource doesn't exceed the resource limit. Once this limit
Systems Archetypes Tragedy Of The Commons Systems Archetype Adventures In Wonderland

A Tragedy of the Commons situation exists whenever two or more activities, each, which in order to produce results, rely on a shared limited resource. Results for these activities continue to develop as long as their use of the limited resource doesn't exceed the resource limit. Once this limit is reached the results produced by each activity are limited to the level at which the resource is replenished. As an example, consider multiple departments with an organization using IT resources, until they've exhausted IT capacity.

Environmental economics Niger Delta oil polluted case study
suryadev pendyala
Investigations into the relationships responsible for the success and failure of nations. This investigation was prompted after reading numerous references on the subject and perceiving that *Why Nations Fail: The Origins of Power, Prosperity, and Poverty* by Acemoglu and Robinson seem to make a gre
Nations Fail Society Economics History Politics
Investigations into the relationships responsible for the success and failure of nations. This investigation was prompted after reading numerous references on the subject and perceiving that *Why Nations Fail: The Origins of Power, Prosperity, and Poverty* by Acemoglu and Robinson seem to make a great deal of sense.

Original model done for The Perspectives Project though recast into Kumu.
Why Nations Fail
Fanda Bunda
Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.
Lab 13
Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.
normL
Ocean Tennant
3
Simulation of Goodwin01 Minsky Model CLD in  IM-172002  Compare with  Part3 slide 3 of presentation  in patreon. See extension Goodwin02 at  IM-172145
Goodwin Macroeconomics Dynamic Minsky Economics Keen Simulation

Simulation of Goodwin01 Minsky Model CLD in IM-172002 Compare with Part3 slide 3 of presentation in patreon. See extension Goodwin02 at IM-172145

Goodwin Minsky Simulation Keen Economic Dynamics Aug2019
Geoff McDonnell
5
Barangay IRAWAN Systems Model
Land Use Plan
Barangay IRAWAN Systems Model
Biophysical, Socio-cultural & Economic Data of Bgy. IRAWAN
Alonzo S. Peralta
WIP Overview model structures of Khalid Saeed's 2014  WPI paper  Jay Forrester’s Disruptive Models of Economic Behavior  See also General SD and Macroeconomics CLDs IM-168865
Dynamics Economics Macroeconomics Forrester System Dynamics Saeed
WIP Overview model structures of Khalid Saeed's 2014 WPI paper Jay Forrester’s Disruptive Models of Economic Behavior  See also General SD and Macroeconomics CLDs IM-168865
Jay Forrester's Disruptive Economic Models
Geoff McDonnell
8 months ago
This model shows the COVID-19 outbreaks in Burnie and the Government intervention to alleviate the crisis and also how is the intervention affect the economy. It is assumed that the Government intervention is triggered when the COVID-19 case is equal to or more than 10.  Government interventi
BMA708 COVID-19 Burnie Economic Impacts
This model shows the COVID-19 outbreaks in Burnie and the Government intervention to alleviate the crisis and also how is the intervention affect the economy.

It is assumed that the Government intervention is triggered when the COVID-19 case is equal to or more than 10. 

Government intervention - lock down the state, suppress the development of COVID-19 effectively. It is related to most of people stay at home to reduce the exposure in public area.
On the other hand, it also bring the economy of Burnie in the recession, as no tourists, no dining out activities and decrease in money spending in the city.
Burnie COVID-19 outbreaks and economic impacts_Pui Chu Daisy Cheung 524767
Pui Chu Daisy Cheung
7
A simple budget planning system.  What additional complexities can you add?
Finance Economics
A simple budget planning system.  What additional complexities can you add?
ISD Savings Plan
Kevin Collins
126
Insight diagram
Cornerstore Economic Model
Lee Cookson
5
Insight diagram
Video Game Economics
Diyar Sautov
This simple model is derived from   D.H. Meadows, Thinking in Systems  chapter 2, figures 27 and 28.  It is designed to explain and demonstrate how the economic system is driven by both an amplifying feedback loop (shown in blue) and a stabilizing feedback loop (shown in red).
This simple model is derived from  D.H. Meadows, Thinking in Systems chapter 2, figures 27 and 28.  It is designed to explain and demonstrate how the economic system is driven by both an amplifying feedback loop (shown in blue) and a stabilizing feedback loop (shown in red).
Project 2: Meadows Economic Capital Model
Stephanie Fogg