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RE: The Mathematics of Fractional Reserve Banking

in #mathematics8 years ago

You may as well assume that all cash loaned by the bank to one contractor is effectively put into a new bank account. The reason is that the contractor pays for services, employees, goods, etc. and that these other businesses in turn put the money in their bank accounts. So, you may as well think of it in aggregate.

Now, I will say that not everyone puts money in the bank, and that diminishes the effective money multiplier rate as that amount of money cannot be used for loans in the next cycle.

Explain to me how the money multiplier effect is a myth? Are you saying math is absurd? Often it is, but I don't see how in this simple example of an infinite geometric series.

The fact remains that there is more money available than the US Treasury Notes that assure the Federal Reserve the US will pay them back. US Treasury exchanges 100M US T-Notes for 100M FRNs. Effective supply is perhaps 500M (due to not every $ going back to the bank to continue in the next cycle). At the least, the effective supply is > 100M. How is that not a multiplier effect?

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The fact remains that there is more money available than the US Treasury Notes that assure the Federal Reserve the US will pay them back. US Treasury exchanges 100M US T-Notes for 100M FRNs. Effective supply is perhaps 500M (due to not every $ going back to the bank to continue in the next cycle). At the least, the effective supply is > 100M. How is that not a multiplier effect?

I want to make sure im understanding -- your beef with the system is that there aren't enough physical currency notes to cover the companie's debt/liabilities?

You avoid my question.

Also, I never claimed to have a beef or not have a beef with any system but rather prefer an informed populace when it comes to basic mathematics and how any system uses the ignorance of the majority of a population to benefit the minority who do understand it. Part of that is the educational system that we have and doesn't incentivize teachers to make students question everything.

ALso, as to the increase in money supply based on lending being based on a math phenonemon. It is, just not the one you think. Yes, absolutely, the money supply increases because banks lend out money. But that would be true even with a full 100% reserve. Lending creates money.

Take fractional reserve out of banking, and force banks to lend entirely on capital... do you know what you get? We do have a system like that in the US. 10 Steem to the first one that can figure out what it is.

missed your reply...

anyway infinite credit market.

Lets take your MM effect to its logical conclusion. The UK. No reserve required. The MM is infinite. Or nearly so. RIght. But they do not, in fact, have an infinite money supply. Why not? Because there are not an infinite number of qualified people looking to borrow in infinite amount of money. Because the amount of money lent vs the amount of money deposited is a function of the market for credit.

In the US, there are legal requirements for who banks can lend money to and how much they can lend to those borrowers. A bank will lend exactly the amount of money for which they can find qualified borrowers. Its a market equation that has nothing whatsoever to do with the required reserve.

So your bank zero, lets say it could find qualified borrowers to lend out exactly 90M. And lets say the RR is 10% and the bank has 100M on deposit. SO they lend out the 90M, just like in your example.

Now, lets say the RR is lowered to 5%. THat does not automatically create new borrowers. The fact is that theyll still lend out the exact same amount. 90M, the amount of money they can sell. The demand for credit has not changed... theyll lend out the same 90M.

Now, lets say that that the RR is raised to 50%. You know how much money theyll lend out? Still 90M. They'll borrow enough to make their reserve. If they have qualified borrowers looking to borrow 90M, its happening. Period. You could set a 150% reserve, and its still happening.

The required reserve rate simply has no effect on money supply. You think it does because youre not getting how moneylending works. You think the system is way less complicated than it really is.

TO put it another way, imagine that your first business,, the one that gets the $100M. Imagine that the CEO picks up the cash, is on the way to bank 0, when he gets overtaken and devoured by a pack of cannibals. They eat his flesh and burn his money with his bones.

SO the 100M deposit never happens. The loan officer in bank 0 is sitting at his desk. The next company ceo comes into bank zero. What do you think happens?

Do you think CEO B walks in, and the bank officer has a bottle of lube in one hand, a porno in the other, and he says "Well, im terribly sorry, but we didnt get enough deposits today. So, although youre perfectly qualified to borrow $90M, instead of lending it to you, which is the whole way my company makes money, im just going to spend the day masturbating?"

Of course not. Hes going to lend CEO B the goddamn money. Because thats his whole purpose. And this would be true regardless of the reserve or money on deposit. Because, say it with me, banks don't use deposits to fund loans.

In the US, there are legal requirements for who banks can lend money to and how much they can lend to those borrowers. A bank will lend exactly the amount of money for which they can find qualified borrowers. Its a market equation that has nothing whatsoever to do with the required reserve.

Before someone points it out. Yes, those legal requirements are often poorly formed, laxly enforced and if they worked properly, the banks wouldnt have needed to get bailed out. I dont think the system is perfect, or even good. I just think its not as described in this post.

As I cannot reply directly to you, due to nesting comment limitations, let me say that the purpose of the headline was to be an attention grabber. Did I ever say that I (personally) had a problem with the system -- or was I relying on the marketing of the title to entice people who do have an issue with the current paradigm -- to take a peak. If the result is that I am able to teach some basic mathematics to people and how it applies in an area of society that affects them daily and let them draw their own conclusions ... then wonderful.

Regardless, if you can agree with that definition of money multiplication, as in any increase in the monetary supply beyond the initial amount borrowed, then, I can assure you that this increase in the monetary supply can be solely attributed to a mathematical phenomena.

I don't follow your claim that I assume an infinite credit supply -- or I am ignorant of the economic terms.

Please, enlighten me.

Also re beef with the banks. Fair enough but when youre calling them crooked, youre clearly trying to make a point... and clearly trying to inject a value judgement.
THat's fine, but using that language then retreating behind "oh im completely impartial. Im just doing math." is trying to have your cake and eat it too.

I've never seen any academic claim that asking a question is the same as making a statement.

Tired of Jason having sex with beagles and molesting children?..

then read this completely unbiased article about math.

Yeah, im saying something about jason, even if im not saying it... and i think you know that.

@complexring and @sigmajin I'm almost sure you're both paying me 10 Steem. The system in the US that works "without Fractional Reserve", so with lending on capital: Credit Unions! Am I right?

@complexring and @sigmajin I'm almost sure you're both paying me 10 Steem. The system in the US that works "without Fractional Reserve", so with lending on capital: Credit Unions! Am I right?

Replying here due to nesting. No. Credit unions (at least ones in the US) fall under the same "depository institutions" category as banks... they have the same reserve requirements.

I gave up on getting an answer and answered elsewhere in the thread already. I would have accepted loansharks or payday loan places like the money store.

point being that if you want to get a loan thats not based on deposits, and comes directly out of the lenders pocket, its possible. But the terms are going to be way crappy.

Replying here due to nesting. No. Credit unions (at least ones in the US) fall under the same "depository institutions" category as banks... they have the same reserve requirements.

Damn. Unfortunately I applied Fractional Reserve to my wallet and so I've already spent that 20 Steem on beer. :(

looks like you did alright on that post about the bankz guy

No, im not saying that math is absurd. I'm saying that the "money multiplier effect" is an absurd misinterpretation of mathemtatics. And economics. and banking. And pretty much everything. Similar to the absurd misinterpretation of mathematics that lead the poster above to pose that the sum of all positive integers is -1/12.

The model is simply flawed. You make a whole bunch of assumptions that aren't true (an infinite credit market being the most grievous). This is a popular gong to bang for the occupy wallstreet set, so numerous detailed explanations of why this model is bunk have been written time and again.

If you google "money multiplier effect idiotic sophistry" or "money multiplier effect myth" youll find quite a few of them

Being that my -1/12 comment is thrown in here, I would like to (for the sake of respectful argument) ask why is it that you think you know the correct interpretation of mathematics? Zero divided by zero is equal to what? Explain how Euler's identity (e^iπ=-1) makes sense. Hell, I even read the article you mentioned from Scientific American and it doesn't really dismiss the importance of the -1/12 answer to the sum of positive integer problem. It's kind of like Bill Clinton debating the definition of "is" is. If somehow that answer is popping up in quantum mechaics or the Casimir force, then it isn't something you should just throw out as being nonsense. Maybe it's incorrect to say that it "equals" -1/12, but it does seem to be interesting. I'm not a banker, but my argument of investing $500 vs. sitting on it is valid, and that $500 could have a ripple effect through the economy.

I think I ran into my limit of replying to replies on this thread, but I would like to add @sigmajin that yes I am still defending that solutions to infinite series are not nonsense. We all learn math like we learn science. You probably learned that atoms were the smallest thing, maybe then you learned that those were made up of smaller things, then possibly you learned about quarks and the rest of the known subatomic particles. Did you tell your science teacher that they were wrong because you previously learned that atoms were the smallest thing? Or did you accept that maybe you were given the best way to understand what you needed at the time you were learning it and now you were going a little deeper in the way the world works? The same with infinite series. How could you pass calculus without being at least a little humbled by what you think makes sense and what the numbers show don't always line up? You're basically adding an infinite number of rectangles with zero width when you integrate, but you get the right answer. Fractional reserve banking means that banks can loan out more money than deposits they take in. When the economy grows, then the bankers are happy. When people spend money, it has a positive effect on the economy. But, when people (or businesses or governments) are unable to pay their bills because they don't have enough savings and there isn't enough new money coming in, then you have a collapse. People and businesses may file for bankruptcy. Governments may try to print their way out of it, but it ultimately can make the damage much worse. Pretend I'm a bank. I loan money to my friends. I only loan the amount of money that I have in savings. I charge them 10% interest on my loans. I can only get back my $100 plus the $10 interest. Say I'm a fractional reserve Bank. I have $100. I can loan $1,000 to my friends because I can have IOU's. Money comes in different forms. There is not nearly the amount of paper (or coins) that there is in debt and 1's and 0's in the economy. Some wouldn't even call the dollar money anymore because it isn't backed by a physical commodity like gold, silver, oil, etc. It's fiat currency because the US government says that it has value.

why is it that you think you know the correct interpretation of mathematics?

Im actually not a huge math guy.... I took business calc and have some specialized stat knowledge from my years as a poker player, but its not like im good will hunting or anything.

But i think a good place to start is understanding that its not a matter of interpretation.

Maybe it's incorrect to say that it "equals" -1/12

Another good place to start is not using quotes around the word equals like its subject to multiple meanings or interpretations.

Hell, I even read the article you mentioned from Scientific American and it doesn't really dismiss the importance of the -1/12 answer to the sum of positive integer problem.

OMG youre not really defending that still are you?

It's kind of like Bill Clinton debating the definition of "is" is

Yes. Its exactly like that. Thats why bill clinton looked so silly and evasive. Because he was posing that there were multiple interpretations to word with such a clear cut and obvious meaning.

So for example, if i say "The some of a series of positive rational integers is always going to be a positive rational integer"

ANd you say "that might be true, it all depends on what your definition of is is. WIth the right definition of is, the sum might be a negative fraction" then yeah total absurdity follows.

I duck duck go'ed the money multiplier effect myth. From mises.org :

They argue that in the present US monetary system there is no such thing as a money multiplier since banks make loans first and worry about reserves later. Moreover, it is argued, within the present lagged reserve requirement framework it is pointless for the Fed to pump reserves, for these reserves cannot be used by the banks since required reserves are only calculated on the past 30 day's deposits.

This is the type of misdirection that keeps the public ignorant in understanding that any money multiplication effect, as it occurs from lending without usury, makes no difference if the reserve requirement is met a priori or a posteriori.

In other words, the effective mathematical difference is zilch, if a loan is made from deposits (as in my example) or from bankers making rational banking decisions as to creating loans and then loaning from a Central Bank to meet reserve requirements.

The money multiplier effect still exists in either scenario and is based on the mathematically sound principles of convergent series whose elements in the sequence are finite partial sums.

Now even if this is not a perfect infinite geometric ratio in the real world, the implications of how this model can be easily seen with how money is created, regardless if loans are done via rational business decisions vs. loaning of new deposits, are readily seen by any casual observer.

Well, it can't be a fringe theory, it comes from the mises institute...

The mises article is actually supporting the MM effect as a real thing... I posted a list of links that included that one for the sake of fairness, as its the best one that actually supports the money multiplier theory.

The Mises article quote is a characterization of the claims of what those who advocate the myth of MM ... my apologies for not making that abundantly clear.

Regardless, the fact of the matter is that you did not adequately address my concerns of money multiplication, due to a posteriori or a priori meeting of reserve requirements, and how this relates to a limiting value in an infinite sequence, in which there are an infinite elements of the sequence, each of which is a finite partial sum.

Let us define money multiplication to be any increase in the monetary supply that is beyond the initial amount borrowed from the Federal Reserve.

Can you agree to that definition?

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