Simulates personal accounts over time.
Model based on:http://circularmoney.org

Currency Economy

Environment Sustainability Society Economy

Scratch build of a stock-flow consistent model of a closed economy, based on a current transactions matrix

Economy Macroeconomics

A toy model to see what happens to employment when people must move through various states to get to certain jobs

Economy Employment Simple

Environment Sustainability Society Economy

Model supporting research of investment vs. austerity implications. Please refer to additional information on the SystemsWiki Focus Page and Modern Money & Public Purpose Video.

Economy Jobs Austerity

This model is an attempt to understand the interactions within an economy in an attempt to determine where the leverage points are to stimulate an economy.

This is a Virtual Systemic Inquiry (VSI) Project. Please refer to the Stimulating an Economy focus page.

Economy

Model supporting research of investment vs. austerity implications. Please refer to additional information on the SystemsWiki Focus Page and Modern Money & Public Purpose Video.

Economy Jobs Austerity

Model showing the effect of bank lending of deposited money as a multiplier in the creation of new money. Multiplier effect is shown as related to the bank reserve requirement on deposited funds.

Banking Deposits Economy

Environment Sustainability Society Economy

Model supporting research of investment vs. austerity implications. Please refer to additional information on the SystemsWiki Focus Page and Modern Money & Public Purpose Video.

Economy Jobs Austerity

Simulation of the effect of a basic income on rental prices based on the assumption people are only willing to spend a certain percentage of their income on rent.

Basic Income Rent Economy

The Cred System is an alternative to traditional currency that increases community resiliency and reduces participant's dependence on traditional dollars. This model is a basic description of the Cred System, involving four people and two loops.​

Economy Community Currency Alternative Currency

Model showing the effect of bank lending of deposited money as a multiplier in the creation of new money. Multiplier effect is shown as related to the bank reserve requirement on deposited funds.

Banking Deposits Economy

A model to gain understanding of the causes and effects of a population's interest in engineering.

Engineering Interest Economy

Economy

The significance of reduced energy return on energy invested (EROI) in the transition from fossil fuel to renewable primary energy sources is often disputed by both renewable energy proponents and mainstream economists.​ This model is a first attempt to illustrate the impact of EROI in large-scale energy transition using a system dynamics approach. The variables of primary interest here are: 1) net energy available to "the rest of the economy" as renewable penetration increases [Total final energy services out to the economy]; and 2) the size of the energy sector as a proportion of overall economic activity, treating energy use as a very rough proxy for size [Energy services ratio].
This model aggregates energy use in the form of fuels and electricity as a single variable, total final energy services, and treats the global economy as a single closed system.
The model includes all major incumbent energy sources, and assumes a transition to wind, PV, hydro and nuclear generated electricity, plus biomass electricity and fuels. Hydro, biomass and nuclear growth rates are built into the model from the outset, and wind and PV emplacement rates respond to the built-in retirement rates for fossil energy sources, by attempting to make up the difference between the historical maximum total energy services out to the global economy, and the current total energy services out. Intermittency of PV and wind are dealt with via Li-ion battery storage. Note, however, that seasonal variation of PV is not addressed i.e. PV is modeled using annual and global average parameters. For this to have anything close to real world validity, this would require that all PV capacity is located in highly favourable locations in terms of annual average insolation, and that energy is distributed from these regions to points of end use. The necessary distribution infrastructure is not included in the model at this stage.
It is possible to explore the effect of seasonal variation with PV assumed to be distributed more widely by de-rating capacity factor and increasing the autonomy period for storage.

This version of the model takes values for emplaced capacities of conventional sources (i.e. all energy sources except wind and PV) as exogenous inputs, based on data generated from earlier endogenously-generated emplaced capacities (for which emplacement rates as a proportion of existing installed capacity were the primary exogenous input).

Energy EROI Economy

Model showing the effect of bank lending of deposited money as a multiplier in the creation of new money. Multiplier effect is shown as related to the bank reserve requirement on deposited funds.

Banking Deposits Economy

How the 4-H club became a marketing thingy for DuPont

Environment Economy Africa 4-H

Scratch build of a stock-flow consistent model of a closed economy, based on a current transactions matrix

Economy Macroeconomics

Scratch build of a stock-flow consistent model of a closed economy, based on a current transactions matrix

Economy Macroeconomics

A model to gain understanding of the causes and effects of a population's interest in engineering.

Engineering Interest Economy

This is the original model version (v1.0) with default "standard run" parameter set: see detailed commentary here and here. As of 2 September 2015, ongoing development has now shifted to this version of the model.

The significance of reduced energy return on energy invested (EROI) in the transition from fossil fuel to renewable primary energy sources is often disputed by both renewable energy proponents and mainstream economists.​ This model illustrates the impact of EROI in large-scale energy transition using a system dynamics approach. The variables of primary interest here are: 1) net energy available to "the rest of the economy" as renewable penetration increases [Total final energy services out to the economy]; and 2) the size of the energy sector as a proportion of overall economic activity, treating energy use as a very rough proxy for size [Energy services ratio].
This model aggregates energy supply in the form of fuels and electricity as a single variable, total final energy services, and treats the global economy as a single closed system.
The model includes all major incumbent energy sources, and assumes a transition to wind, PV, hydro and nuclear generated electricity, plus biomass electricity and fuels. Hydro, biomass and nuclear growth rates are built into the model from the outset, and wind and PV emplacement rates respond to the built-in retirement rates for fossil energy sources, by attempting to make up the difference between the historical maximum total energy services out to the global economy, and the current total energy services out. Intermittency of PV and wind are compensated via Li-ion battery storage. Note, however, that seasonal variation of PV is not fully addressed i.e. PV is modeled using annual and global average parameters. For this to have anything close to real world validity, this would require that all PV capacity is located in highly favourable locations in terms of annual average insolation, and that energy is distributed from these regions to points of end use. The necessary distribution infrastructure is not included in the model at this stage.
It is possible to explore the effect of seasonal variation with PV assumed to be distributed more widely by de-rating capacity factor and increasing the autonomy period for storage.

This version of the model takes values for emplaced capacities of conventional sources (i.e. all energy sources except wind and PV) as exogenous inputs, based on data generated from earlier endogenously-generated emplaced capacities (for which emplacement rates as a proportion of existing installed capacity were the primary exogenous input).

Energy EROI Economy

Scratch build of a stock-flow consistent model of a closed economy, based on a current transactions matrix

Economy Macroeconomics