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This model shows the basic functioning and dynamics of a 'modern monetary system'.

The non-government sectors, consisting of the private and foreign sectors initial y starts with zero currency units. It is important to realize that  after creating a new currency the government must first spend currency units into the economy before they can be used: without currency units the private sector could not even pay taxes! A government that has its own freely floating currency can create a much money as it wants. It does not need tax receipts to finance its spending, and any money it spends into the economy above that collected in taxes represents income for the private sector. The model show that the government initially created 9 trillion money units, but spent only six trillion into the economy. The six trillion showed up as a government deficit, but also as wealth in the non-government sector.

Since the government can create as many money units as it wishes and transfer  them  to the private sector  to ensure an adequate level of demand in the in the economy,  austerity is unnecessary: money is available, though real resource may be scarce. This also shows that the government can contribute actively towards the creation of prosperity. 

Please note that this model was originally created by Gene Bellinger, IM 3206, from which this version was  cloned.


Clone of Austerity vs Prosperity
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WIP SD representation of Steve Keen's MMT Minsky Model of an MMT fiat credit economy August 2020 patreon
Keen MMT Model
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Summary of Pavlina Tcherneva's 2019 Challenge article (paywalled)  added to IM-173064 Ch 19 Full employment policy of Macroeconomics textbook
Job Guarantee
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WIP SD REpresentation of Steve Keen's BOMD Minsky model (described in Fig.5 of his patreon Jan2021 Draft New Economics Manifesto) to hope to make the causal structure clearer
Keen Bank Originated Money and Private Debt
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This is a simplification of the Austerity vs Prosperity model in the hope that it will be easier to understand.
Clone of Austerity vs Prosperity v0
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Map of SD work on Samuelson's 1939 model of the business cycle. See also D-memo D-2311-2 Gilbert Low 1976 and IM-165713. An alernative to the Ch 26 Macroeconomics textbook exposition.  From Gil Low's Multiplier Accelerator Model of Business Cycles, Ch 4 of Elements of the System Dynamics Method Book edited by Jorgen Randers 1976 (MIT Press) and 1980 (Productivity Press)
Samuelson multiplier accelerator model
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Goodwin business cycle model, modified from Keen and Blatt

Clone of Goodwin Business Cycle
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Este modelo es una copia de "Goodwin Business Cycle". Quité al menos una variable y aproximé la relación discreta entre el nivel de empleo y el crecimiento anual del salario con una función basada en la tangente hiperbólica.

Ciclo de conyunctura de Goodwin
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WIP  based on Where profits come from paper , Nathan Tankus blog and other historical sources
Monetary Circuit Flows
5 months ago
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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.

Clone of Minsky Financial Instability Model
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Figs 1 and 2 of David HArvey's Companion to Marx's Grundrisse illustrating the circulation of money and value in capitalism, dubbed as "value in motion" Also Waterstone and Chomsky Consequences of Capitalism Book
Marx and Circulation of Capital and Money
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Overview of Ch 25 of Mitchell Wray and Watts Textbook see IM-164967 for book overview
The Role of Investment in Profit Generation
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Correlation of National Electrification with Internal and External Influence Factors
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Summary of Ch 13 of Mitchell Wray and Watts Textbook see IM-164967 for book overview
Theory of Effective Demand
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WIP SD representation of Ch11 of their 2007 Monetary Economics book, as suggested by Adam K. Plan is to do a top down simple money flow SFC mmt model and successively split sectors. See also essence of MMT IM and simpler version Ch3 IM
Godley and Lavoie Growth Model
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Causal loop representation of Keynesian macroeconomics taken from the System Dynamics literature, specifically Henize 1972 MIT D-memo D-1717. See also Nathan Forrester's SF CLD Diagram from his PhD IM-165714
Keynes theory of employment and inflation
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WIP Exttension of IM-172005 Simulation of Goodwin01 Minsky Model. Compare with Part3 slide 5 of presentation in patreon

Clone of Goodwin02 Minsky Simulation Keen Economic Dynamics Aug2019
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Summary of Ch 6 of Mitchell Wray and Watts Textbook see IM-164967 for overview
Sectoral accounting and the flow of funds
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From  billy blog Japan entries and Ch2 of Mitchell Wray and Watts Textbook see IM-164967 for book overview
Japan and mainstream macroeconomics
7 months ago
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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.

Clone of Minsky Financial Instability Model
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From Bill Mitchell and Warren Mosler December2018 billy blog entry  and mosler's MMT white paper (google docs) 2019. Some highly aggregated stocks and flows and boundaries introduced.
Clone of The essence of MMT
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Goodwin Model:
This is a basic version of the Goodwin Model based on Kaoru Yamagushi (2013), Money and Macroeconomic Dynamics, Chapter 4.5 (link)

Equilibrium conditions:
  • Labor Supply = 100
Devation from the equilibrium conditions generates growth cycles.
Clone of Clone of Goodwin Model
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Summary of Ch 12 of Mitchell Wray and Watts Textbook see IM-164967 for book overview. Compare with SD CLD IM-169071
Clone of Keynes and the Classics
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WIP Ideas from Science Special Issue May 2014
Clone of The Science of Inequality