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Самостаятельная работа часть 1 Акилбеков Асет

Akilbekov Aset

12 months ago

Island economic system

Bertrand Nzomigni

An initial study of the economics of single use coffee pods.

Coffee Pods ISD Humanities

Steven D'Alessandro

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.

SDR Case study System dynamic modelling

Marcos Fraiha

6

Modern Blockchain Economics

Peter Vermette

5 months ago

Butterfly Effect
Sensitivity To Initial Conditions
(sensitive dependence on initial conditions)
Navier Stokes Equations
Lorenz Attractor
Chaos Theory, Disorder and Entropy

Although the butterfly effect may appear to be an esoteric and unlikely behavior, it is exhibited by very simple systems: for example, a ball placed at the crest of a hill may roll into any of several valleys depending on, among other things, slight differences in initial position. Similarly the direction a pencil falls when held on its tip, or an universe during its initial stages.

These attractors apply to social systems and economics showing jumps between potential wells, and showing the strategic scaling behavior of rotating and cyclic systems whether they be social, economic, or complex spin or rotation of planets affecting weather and climate or spin of galaxies or elementary particles, or even a rock on the end of a piece of string.

What Playing with numbers is all about :)

If M is the state space for the map , then displays sensitive dependence to initial conditions if for any x in M and any δ > 0, there are y in M, with such that

Clone of THE BUTTERFLY EFFECT

Mirko Théodoloz

System Zoo Z409 Fishery dynamics from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

Fishing is a classic example for use of a renewable resource. Unless overfished, fish populations If is hardly by fishing, then the fish population will persist at a constant size corresponding to its specific ecological envi ronment If the stock is overfished, the juvenile generation becomes too small to fully replace the adult generation. If overfishing continues. the population cannot recover and will collapse in short time. Even if fish catch stops now/, it could take decades until the fish population recovers to its original size if it hasn't become extinct meanwhile. In many of the world overtlshing has led, and still leads, to the complete collapse of formerly huge tlsh populations: herring in the North Sea, codtlsh in the Northern Atlantic. tuna, whales to name only a few. With the collapse of fish stocks came the collapse of the t1shing industry in many regions. Employment and

incomes disappeared: whole regions (like Newfoundland) lost their economic base.

Bossel: Z409 Fishery dynamics

Alfred Aenishaenslin

This is the summary of lecture 1 of my Course about StartUps. It's an intro to the startup ecosystem and the different stakeholders that can interact with your new enterprise at different stages of its evolution and growth. -version 1 - for info or suggestions: bonato.pietroz@gmail.com

StartUp ecosystem

PietrOZ

This Insight is the first in a series of models that examine the dynamics of population growth and decline in a simple environment. It follows on from a series of four Insights that introduce the basic concepts of Systems Dynamics that start here.

The next Insight model introduces the concept of limits to growth and explores the more complex behaviour this generates. The model can be found here.

The models are based on the activities from an Open University short course that can be accessed here.

Understanding the Environment 101: Population Dynamics

Bob Hawkins

7

Economic model

Alec Phipps

Economical Factors of Science: C8

Varsha Vasudevan

MiPrimerModelo

NATALIA TAIS PARDO CARRILLO

FORCED GROWTH GROWTH GOES INTO TURBULENT CHAOTIC DESTRUCTION
BEWARE pushing increased growth blows the system!
(governments are trying to push growth on already unstable systems !)

The existing global capitalistic growth paradigm is totally flawed

The chaotic turbulence is the result of the concept and flawed strategy of infinite bigness this has been the destructive influence on all empires and now shown up by Feigenbaum numbers and Dunbar numbers for neural netwoirks

See Guy Lakeman Bubble Theory for more details on keeping systems within finite limited size working capacity containers (villages communities)

FORCED GROWTH INTO TURBULENCE

Guy Lakeman

5

Develop a system model using the gathered Biophysical, Socio-economic, and Cultural data of Iwahig

System Thinking and Modelling

Janah Kathlen J. Ruiz

This model compares direct exchange prices to money prices. It demonstrates the distortion that monetary expansion or contraction has on the information contained in monetary pricing.

Pricing Model

Jim Berger

7

Week 13.1 Lab Economic Model

Rachel Christensen

Tilburg University e-business

Mariapia Letizia

6

This model simulates a COVID outbreak occurring at Burnie, Tasmania. It links the extent to the pandemic with governments intervention policies aiming to limit the spread of the virus. The other part of the model illustrates how will the COVID statistics and the government enforcement jointly influence the economic environment in the community. A number of variables are taken into account, indicating positive or negative relationship in the infection and the economy model respectively.

Assumptions

· Government takes responsive actions when the number of acquired cases exceeds 10.

· Government’s prompt actions, involving closure of the state border, lockdown within the city, plans on mandatory vaccination and testing, effectively control the infection status.

· Economic activities are reduced due to stagnation in statewide tourism, closure of brick-and-mortar businesses, and increased unemployment rate, as results of government restrictions.

Insights

Government’s rapid intervention can effectively reduce the infected cases. The national vaccination rollout campaign raises vaccination rate in Australians, and particularly influence the death rate in the infection model. Please drag the slider of vaccination to a higher rate and run the model to compare the outcomes.

Although local economy is negatively affected by government restriction policies, consumer demand in online shopping and government support payments neutralize the negative impact on economy and maintain the level of economic activities when infections get controlled.

Simulation model of COVID outbreak in Burnie Tasmania_Yuchen Zhang_574644

Yuchen Zhang

Based on the Market and Price simulation model in System Zoo 3. Used in the System Thinking section of Regenerative Economics.

Price change from supply

Henny van Dongen

Food Waste Part 2

Kiran Rashid

5

Leprino represents the cheesemaking capacity of RCC. Any manufacturers beyond Leprino are explicitly implied to be included

RCC Economic model

Jens Deichmann

ESI6550 Group 6 (Model 2)

Brad D

The Great Barrier Reef Sustainability Model:

Credit and Resources (not including non-graph images):

1. Chapter Two- Basic System Dynamics:

Harris,S.E., Burch, S.L (2014). Understanding climate change: Science, policy, and practice

2. The Scripps Institute of Oceanography

Graphs and data for levels of CO2 provided via the published material from the Mauna Loa Observatory in Hawaii

3. How many Gigatons of CO2 ...?

http://www.informationisbeautiful.net/visualizations/how-many-gigatons-of-co2/

This is the compiled results of levels of CO2 used in this model. The website itself has a list of resources used to compile the summarized mean data.

4.Week Two and Three ISCI 360 Lectures:

Emily Scribner and Stuart Sutherland

5. Dr. Harvey's Proposition

Harvey,D.D.L (2007). Mitigating the atmospheric CO2 increase and ocean acidification by adding limestone powder to upwelling regions

Website: http://faculty.geog.utoronto.ca/Harvey/Harvey/

Article:http://www.treehugger.com/clean-technology/giving-geo-engineering-another-go-dumping-limestone-into-the-oceans-to-fight-acidification.html

6. 5. Limestone Quarry and Processing

University of Tennessee and published by the National Stone Council

http://www.naturalstonecouncil.org/content/file/LCI%20Reports/Limestone_LCIv1_October2008.pdf

6.

l

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Final Version of ISCI 360- The Great Barrier Reef Sustainability Model

Praneesh Datt

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

Last Lab, scenario 1

Ben Rivera