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In the late 80s, I typed in a BASIC economy simulator I found in some computer magazine. It ran to two or three closely-typed pages (sides).

As Chancellor of the Exchequer, you set the tax-rate, interest rate, level of public spending and so on; then you ran a cycle. I can't remember whether a cycle was a month or a year. After about three years, the workers would be on strike and there would be rioting in the streets. Every time.

I wasn't particularly interested in macroeconomics at the time; I certainly had no idea how to run an economy. I have no idea how realistic the economic model was. I assume it was just a bit of fun.

But I'd like to tinker with a realistic economic model that is flexible enough to, for example, model Modern Monetary Theory.



If you like playing this sort of thing I must recommend NetLogo [0].

It's an "agent" based modelling environment, so you have to "discretize" (yuck) your problem first.

I learned about it because Scott Page uses it for his "Model Thinking" class [1].

[0] https://ccl.northwestern.edu/netlogo/

[1] https://modelthinker.wordpress.com/

There is also the MIT "systems modelling for a complex world"


+1 - I studied Netlogo when I dabbled in economic simulation several years back. And alas as a non-software engineer my coding skills were not up to the task for even Netlogo's simplified interface. Yet NL serves as a valuable wrapper for any mesh- or distributed agent programming problem - (for those more skilled than me). One doesn't have to know OOP or anything to get an instructive simulation - (e.g. wolves vs sheep vs grass behavior) up and running. =)


Ah, you see, you have to turn off the IS_FRANCE option.


Top tier comment right here. Well done.


I think anybody who's ever tried to model MMT feels the same way. I suspect the underlying theory doesn't have enough substance to actually model.


Jump, meet conclusion.


Economist here. Why Modern Monetary Theory in particular? Just curious :)


> Why Modern Monetary Theory in particular?

Because I don't understand it. Having a model to tinker with might help me to understand it better. It looks a bit like voodoo, but then a lot of economics looks like voodoo to me; I'm not an economist.




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