Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.

System Thinking and Modelling of Biophysical, Socio-economic and Cultural components of Iwahig, Bacungan, Simpocan and Irawan

Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.

• This model examines how sustainable consumerism is from social, economic, and environmental aspects.  

Explanation of the Model

This simple model describes wealth accumulation. The value in income is described by the following simple equation:

Simple mock-up model of how prioritizing various push-pull factors impacts the size of the immigrant population over time as well as economic benefits to the U.S. economy.

This model shows the operation of a simple economy. It demonstrates the effect of changes in the fractional rate of consumption (or the converse, the fractional rate of saving.) It also, unlike Models 2 & 3, shows the influence Savings has on the production rate.

In summary, lower rates of consumption (based on production) result in higher rates of both production and consumption in the long-run.

Based on System Zoo EZ412D, EZ411, EZ412A.

BRIEF OPENING PARAGRAPH:

Our sustainability challenge surrounds the issues that stem from ineffective mitigation of stormwater. Through this, there is an increased risk of flooding, as stormwater runoff is directly released into rivers. This unregulated runoff creates social, economic, and environmental issues. The increased chance of floods creates social issues such as property damage to homes, destruction of crops and livestock, and severe mental trauma to those affected. The environment is also impacted by this issue, as improper stormwater mitigation creates an increase in temperature through the Urban Heated Island Effect. Finally, this challenge raises several economic issues, as funds for repairing damages may become limited through repeated flood damage, with property value will plummeting as a result. Our model will present the challenge of ineffective stormwater mitigation, and the social, economic, and environmental issues that occur as a result.

BRIEF CLOSING PARAGRAPH:

Through our model, the issues of improper mitigation of runoff have been presented. It is clear that without regulation, stormwater runoff can be detrimental to our society, economy, and our environment. Living in an area that rains often, such as Greater Vancouver, this issue is extremely relevant, as we are directly impacted by unregulated runoff. When running a simulation of our model on InsightMaker, groundwater is shown to increase initially, and then quickly plateaus. This is because groundwater is not infinite, and if this problem continues to persist, we will eventually run out of drinkable water. It is important that we raise awareness to this issue, and that we understand its impacts from societal, economic, and environmental perspectives.

SEPARATE PAGE FOR A DETAILED DESCRIPTION OF THE MODEL AND THE ISSUES EXPLAINED IN DETAIL:

https://docs.google.com/document/d/11-Md0b_tNKTJMsKvJmUB2U3A-S9YERFpcXZSmZ4JPco/edit?usp=sharing

Plan for CCP project completion see IM-102242  for WIP detail of the structures of the related models

Implementation of the Solow model of economic growth with labor enhancing technology.

parameters: s, alpha, delta, n, gA
variables: Y. K, L, C, A
per capita variables: y, k, c, a
per capita and technology variables: y~, k~, c~
steady state variables: y~*, k~*, c~*
all variables come with relative growth rates g

Features:

+steady state from beginning
+one time labor shock
+permanent savings quote shock
+permanent technological growth rate shock

Decreasing steady state variables when starting in steady state are numeric artifacts.

WIP Summary of Miller 2015 PCD article for the Compelling Case for Prevention Project Scoping Study.

This model demonstrate how the exisitng tested COVID cases effects economic recovery via goverment intervenes.

Smithian growth model from Michael Joffe Fig. 3.7 p57 Ch3 Feedback Economics Book

Adapted from Hartmut Bossel's "System Zoo 3 Simulation Models, Economy, Society, Development."

​Population model where the population is summarized in four age groups (children, parents, older people, old people). Used as a base population model for dealing with issues such as employment, care for the elderly, pensions dynamics, etc.

Eastern oyster growth model calibrated for Long Island Sound
Developed and implemented by Joao G. Ferreira and Camille Saurel; growth data from Eva Galimany, Gary Wickfors, and Julie Rose; driver data from Julie Rose and Suzanne Bricker; Culture practice from the REServ team and Tessa Getchis. This model is a workbench for combining ecological and economic components for REServ. Economic component added by Trina Wellman.

This is a one box model for an idealized farm with one million oysters seeded (one hectare @ a stocking density of 100 oysters per square meter)

1. Run WinShell individual growth model for one year with Long Island Sound growth drivers;

2. Determine the scope for growth (in dry tissue weight per day) for oysters centered on the five weight classes)
 
3. Apply a classic population dynamics equation:

dn(s,t)/dt = -d[n(s,t)g(s,t)]/ds - u(s)n(s,t)

s: Weight (g)
t: Time
n: Number of individuals of weight s
g: Scope for growth (g day-1)
u: Mortality rate (day-1)

4. Set mortality at 30% per year, slider allows scenarios from 30% to 80% per year

5. Determine harvestable biomass, i.e. weight class 5, 40-50 g (roughly three inches length)

Ocean/atmosphere/biosphere model tuned for interactive economics-based simulations from Y2k on.