Nice point about money. I believe that even barter exchanges are construed
as income. So there is no escape from the taxation trap except, perhaps,
complete self-sufficiency.

-- Russ

On Sun, Apr 12, 2009 at 8:48 PM, Tom Carter <[email protected]> wrote:

> Russ -
>   Thanks . . .
>
>   As far as thinking about how economies "really" work . . . what follows
> is not really a response to your questions, but a source for thinking about
> transitions from subsistence/barter to a "monetized" system . . .
>
>   A clever scheme:
>
>     1.)  Find a region where there is a subsistence/barter "economy" (with,
> typically, tribal/communal shared land).
>
>     2.)  With "high minded" fanfare, institute "land reform."  That is,
> divide the land up into small plots, and assign "ownership" of the plots to
> individuals.
>
>     3.)  Now, the clever part:  establish a "land tax," but make sure that
> the "land tax" must be paid in currency.  Note that an "income tax" won't
> work, because then people could remain in their subsistence/barter mode,
> avoid having any accountable "income," and thus avoid the "taxation" trap .
> . .
>
>     4.)  Before long, everyone will have to either switch to "cash crops,"
> or engage in "wage labor" (or, more likely, both) in order to get currency
> to pay the "land tax."
>
>     5.)  You will then have a "monetized" economy, together with a ready
> pool of "wage laborers," and "consumers" who purchase goods, since they have
> moved to "cash crops," away from subsistence farming.
>
>   A quick Google search yields this essay (the Google search was:  colonial
> land taxation cash crop):
>
>     http://www.cfeps.org/pubs/wp-pdf/WP25-Forstater.pdf
>
>   A quote from the essay:  "The history of direct taxation in colonial
> capitalism also has some widertheoretical implications. It shows, for
> example, “that ‘monetization’ did not spring forth
> from barter; nor did it require ‘trust’—as most stories about the origins
> of money claim”
> 15 (Wray, 1998, p. 61). In the colonial capitalist context, money was
> clearly a “creature of
> the state” "
>
>   Anyway . . .
>
> tom
>
>
>
> On Apr 12, 2009, at 5:07 PM, Russ Abbott wrote:
>
> Hey Tom,
>
> Very nice work. Do you have anything that would help build intuition about
> how it all works?
>
> Also, what I'm after is an understanding of how an economy works. Your
> model says that an economy that satisfies certain conditions will
> (inevitably) wind up with a certain wealth distribution. But it doesn't tell
> me what's happening in the economy -- only that some people will become rich
> and a lot more will become poor. I'd like to develop a feeling for what's
> actually going on in the economy.
>
> For example, in my original model in which (a) each agent needs to consume
> one unit of each of N different resources at each time step (b) there are N
> agents each of which produces N units of a particular resource i (different
> from each agent) and (c) agents trade (barter style) units of resource one
> for one as needed, it seems to me that there will be no wealth accumulation.
> Everything that is produced is consumed, and as long as agents are able to
> trade with each other on a one-for-one basis, every agent survives but no
> agent accumulates any excess.  So that doesn't quite fit the model.
>
> Furthermore, what happens if some agents (as a result of technological
> advances) are able to produce N units of a resource in less than one time
> step? Then those agents will have time on their hands and can produce
> something other than the resource that they contribute to the community. So
> they start producing resources that no one needs -- but that perhaps some
> agents want.
>
> The agents with time on their hands then exchange these discretionary
> resources among each other. Again this might be modeled as a barter system
> -- although some convenient resource could come to serve as a unit of
> measure and medium of exchange. If you take this to the limit so that every
> agent is producing nothing but discretionary resources (i.e., the "needs"
> are so cheap to produce that there is no point keeping track of them), then
> what? In this model, every agent creates N units of value every time step.
> So there will never be any agents with no resources.
>
> In addition, since every transaction involves the exchange of units of
> resource of the same value, it seems like there is no room for accumulation
> of wealth. (This is assuming that one acquires a resource in order to
> consume, i.e., destroy, it.) So when two agents exchange resources, they are
> both left poorer since they each consume the received resource. In this
> model an agent grows wealthy only by not exchanging resources and keeping
> all the resources it produces. It then has the ability eventually to go on a
> shopping spree, pig out, and consume lots and lots of resources at one
> time.  But what else is that wealth good for in this economy?
>
> So all this doesn't quite seem to fit the model you are describing.
>
> -- Russ
>
>
> On Sun, Apr 12, 2009 at 4:31 PM, Tom Carter <[email protected]>wrote:
>
>> All -
>>   The real "random walks" link:
>>
>>
>> http://csustan.csustan.edu/~tom/SFI-CSSS/2009/LectureNotes/Random%20Walk/<http://csustan.csustan.edu/%7Etom/SFI-CSSS/2009/LectureNotes/Random%20Walk/>
>>
>> tom
>>
>> On Apr 12, 2009, at 3:58 PM, Tom Carter wrote:
>>
>> All -
>>   Apropos some of this, there are notes from lectures I've given recently
>> on some of these topics here:
>>
>>   Math Club lecture <http://csustan.csustan.edu/%7Etom/math-club>  (including
>> some discussion of the "wealth model," and some "power laws" discussion)
>>
>>   Black-Scholes/High 
>> Finance<http://csustan.csustan.edu/%7Etom/SFI-CSSS/2008/LectureNotes/HighFinance>
>>
>>   Random 
>> Walks<http://csustan.csustan.edu/%7Etom/SFI-CSSS/2009/LectureNotes/Random%2520Walk>
>>
>> tom
>>
>> On Apr 12, 2009, at 11:16 AM, Stephen Guerin wrote:
>>
>> Russ writes:
>>
>> there are N agents; N resources are needed for survival. So if the
>> aggregate production is evenly distributed everyone has a subsistence
>> living.
>>
>>
>> I don't think this is necessarily true.
>>
>> Your mentioning a gift economy is further a reason to look at a model as
>> simple as the Tom Carter/Victor Yakovenko model I mentioned where agents are
>> giving a dollar to another random agent (ie gifting). This model, with
>> minimal assumptions, generates non-equitable distribution of wealth where
>> very few agents end up holding most of the wealth (Boltzmann distribution)
>> even though the average wealth in the model is unchanged at $50/agent.
>>
>> The important constraint in the model is that agents can only have
>> positive amounts of cash/goods -- they can't gift a dollar they don't have.
>>
>> Just as energy distributes itself as a boltzmann distribution as particles
>> can not have less than zero energy after a collision (transaction).
>> Basically we have diffusion against a wall in both models. Of course we can
>> introduce debt and progressive taxes to the economic model to mess with the
>> dynamics, but I think it's important to recognize the non-equity is there
>> from the beginning with very minimal assumptions. Note that the wealthy
>> agents do turnover in this model so the definition of what is equitable is
>> important.
>>
>> -Steve
>>
>>
>>
>> On Apr 12, 2009, at 11:40 AM, Russ Abbott wrote:
>>
>> Thanks for all the responses.  What prompted my question was thinking
>> about the "end state" of the current financial crisis.  The question is:
>> what does a successful stable economy look like? Only secondarily was I
>> asking about markets, wealth distribution across society, etc., which is
>> what many of the existing models focus on.
>>
>>
>> In attempting to describe the foundations of a stable economy I was making
>> the following assumptions.
>>
>>  • We live off the gift of free energy -- the sun. So in some sense a
>> stable economy requires little more than harvesting that energy.
>>
>> • As human beings we have the innate (i.e., also free) ability to
>> transform that energy into other forms that we need. For example, most of us
>> on this list are capable of writing code. I'm taking skills like that as
>> more free gifts from nature. Yes, it requires, education, study, practice,
>> etc., but ultimately it grows out of our being alive, a free gift.
>>
>> • In talking about "free gifts" from nature, I'm not trying to be
>> spiritual, new age-y, etc. It just seems to me to be the way the world
>> works. So I'm willing to build it into the model.
>>
>> • But, even though we live off these free gifts, we all need energy to
>> survive. If you look at my "Reductionist blind spot" paper, you see that we
>> are what I call dynamic entities. Dynamic entities need to import externally
>> supplied energy to persist -- in our case food, at least. So even though we
>> find ourselves in a world in which there is externally supplied energy
>> available to be imported (from the sun and its stored versions), we are each
>> still required to do something to import it for ourselves. That is, we must
>> each work for a living.
>>
>> • Presumably a standard economic model says that we live at a subsistence
>> level if the amount of work we do matches our needs. If I spend all my
>> working hours doing nothing more than earning what I need to survive, that's
>> subsistence.
>>
>> • I want to allow specialization so I suggested that each agent
>> specializes in producing some resource but that the aggregate amount
>> produced exactly satisfies the needs of the producers. That is, each agent
>> produces N units of his specialty resource; there are N agents; N resources
>> are needed for survival. So if the aggregate production is evenly
>> distributed everyone has a subsistence living.
>>
>> • A society/economy grows "richer" when it can produce enough resources
>> for itself without requiring everyone to work on producing those resources.
>> In that case, the available excess labor can produce discretionary items,
>> like art, pop music, software, soft drinks, philosophy, etc.
>>
>> • As technology advances a smaller and smaller percentage of the
>> population is needed to produce the necessities. The rest can spend their
>> time producing discretionary items.
>>
>> • So at this point we are all well fed, and we are all willing to spend
>> our extra money supporting our local NPR stations.
>>
>>  • But what happens when there is shock to the economy and people find
>> that they have less "wealth" than they thought they had? Presumably they
>> will spend less on discretionary items, and the people who create those
>> items will be out of work. Where do we go from there?
>>
>> So I am looking for a model to explore these kinds of issues.
>>
>>
>> I must say that I'm surprised at the number of things I had to write down
>> to explain what I am after. I thought it would be simpler. And I want
>> something as simple as possible.
>>
>>
>> Any thoughts/suggestions?
>>
>>
>> -- Russ
>>
>>
>> On Sun, Apr 12, 2009 at 9:14 AM, Victoria Hughes <[email protected]>
>> wrote:
>>
>> > Attention and action = the price to consume.
>>
>>
>> is it possible to have an idea / new information and not in some way,
>> internally or externally, react to it?
>>
>> Memes spread. Humans by design infect each other on all levels.
>>
>> The Complex seems like a great example: by definition intends to do this.
>>
>> Idea / attention / action-reaction / experience / new idea.
>>
>> And so forth.
>>
>> Am enjoying the bouncing of ideas and information in this particular
>> string...
>>
>> Tory
>>
>>
>> On Apr 12, 2009, at 7:04 AM, Jochen Fromm wrote:
>>
>>
>> The central property which emerges in markets is
>>
>> the price. The central law which rules markets is
>>
>> the law of supply and demand. A basic agent-based
>>
>> model for markets should explain how both, the
>>
>> price and the law of supply and demand, emerge
>>
>> in competitive markets. It should be simple to
>>
>> extend such a model to explain bubbles and crashes.
>>
>> As far as I know, there is no basic model of
>>
>> markets in general, there are only agent based models
>>
>> of specific markets, for example stock markets,
>>
>> financial markets and electricity markets. Perhaps
>>
>> the law of supply and demand is too simple to justify
>>
>> such a model?
>>
>>
>> Epstein and Axtell's Sugarscape is a model where
>>
>> agents begin to accumulate "wealth" in some form,
>>
>> but it is more about evolution of societies and less
>>
>> about market mechanisms and economies.
>>
>>
>> It would be interesting to apply a basic agent-based
>>
>> market model to the society of mind. If we consider the
>>
>> crowd within and the battle of ideas which is going on
>>
>> inside our minds, can we create an agent-based model
>>
>> to explain the 'market of information' ? We have a
>>
>> demand for new or highly emotional stuff, are constantly
>>
>> supplied with information from the outside, and the price
>>
>> we have to pay to consume it is attention.
>>
>>
>> -J.
>>
>>
>> ----- Original Message ----- From: Russ Abbott
>>
>> To: The Friday Morning Applied Complexity Coffee Group
>>
>> Sent: Sunday, April 12, 2009 9:00 AM
>>
>> Subject: [FRIAM] Agent-based market models
>>
>>
>> Does anyone know of good examples of generic agent-based market economies?
>> I'm thinking of something as simple as this.
>>
>>
>> A population consists of agents each of which has certain continuing needs
>> (such as food, clothing, shelter, Internet access, etc.) to survive. As a
>> starting point, let's assume that each agent needs one unit of each of N
>> resources every time period.  Let's also assume that each agent is
>> specialized and is capable of creating enough of one of the needed resources
>> to satisfy the needs of N agents. (The fact that I used the same N in both
>> places was intentional.) To keep it simple let's assume that these acts of
>> creation occur from scratch, i.e., that the creator doesn't need raw
>> materials, that all that's necessary for an agent to create a needed
>> resource is that the agent be alive. The agents presumably develop a barter
>> economy, trading the resources they create for the resources they need to
>> stay alive. Perhaps markets develop, and perhaps money develops. At this
>> point the economy should be fairly stable. Each agent creates enough stuff
>> so that s/he can trade it for what s/he needs to stay live.
>>
>>
>> Perhaps some of the agents learn how to be more efficient in creating
>> their resource and begin to accumulate "wealth" in some form.  Perhaps the
>> agents have discretionary desires, which they fill if they have enough
>> resources left over after meeting their basic needs. Perhaps there are
>> communal services that are paid for by taxes or memberships.  This could
>> become increasingly elaborate.
>>
>>
>> It seems to me that models of this sort must have been developed --
>> perhaps many times. Does anyone know of any references to this sort of work?
>>
>>
>> Thanks.
>>
>>
>> -- Russ Abbott
>>
>> _____________________________________________
>>
>> Professor, Computer Science
>>
>> California State University, Los Angeles
>>
>> o Check out my blog at http://bluecatblog.wordpress.com/
>>
>>
>>
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