On Reddit's financial section, user Kancho_Ninja asked, "Where has all the money in the world gone?," looking for an explanation that a 5-year-old could understand.
otherwiseyep took on the challenge and explained in laymen terms the birth of money to how we found ourselves in the current financial crisis we're facing:
It's hard to explain this to a five-year-old, because there are some fairly abstract concepts involved, but here goes...
All actual "money" is debt. All of it, including monetary gold, etc. (Don't argue with me yet, I'll get to that.)
Imagine a pretend world with no money, some kind of primitive villiage or something. Now let's invent paper money. You can't just print a bunch of paper that says people have to give you stuff, because nobody would honor it. But you could print IOUs. Let's walk through this...
- Let's say you're an apple-farmer and I'm a hunter. You want some meat but haven't harvested your crops yet. You say to me, "hey, go hunt me some meat and I'll give you 1/10th of my apple harvest in the fall". Fair enough, I give you meat, you owe me apples. There's probably a lot of this kind of stuff going on, in addition to normal barter. In time, standard "prices" start to emerge: a deer haunch is worth a bushel of apples, or whatever.
- Now, let's say a week later, I realize that my kid needs a new pair of shoes more than I need a bushel of apples. I come back to you and say, "Hey remember that bushel of apples you owe me? Could you write a marker, redeemable for one bushel of apples, that I can give to the shoemaker in trade for a pair of shoes?" You say okay, and we have invented a transferable note, something a lot like money.
- In time, our little villiage starts to figure out that a note redeemable for a bushel of apples can be swapped for all kinds of things. The fisherman who doesn't even like apples will accept apple-certificates in trade for fish, because he knows he can trade them to boat-builder who loves apples. In time, you can even start to hire farm-workers without giving them anything except a note promising a cut of the future harvest.
Now, you are issuing debt: a promise to provide apples. The "money" is a transferable IOU-- your workers get a promise to provide value equal to a day of farm-work, or whatever, and it's transferrable, so they can use it to buy whatever they want. The worker gets fish from the fisherman, not in exchange for doing any work or giving him anything he can use, but in exchange for an IOU that the fisherman can redeem anywhere.
So far so good. But there are a couple of forks in the road here, on the way to a realistic monetary system, that we'll address separately:
- What happens if your apple orchard is destroyed in a wildfire? Suddenly all the notes that everyone has been trading are basically wiped out. It didn't "go" anywhere, it's just gone, it doesn't exist. Real value was genuinely destroyed. There is no thermodynamic law of the conservation of monetary value-- just as you and I created it by creating transferable debt, it can also be genuinely destroyed. (We'll get back to this in a minute, it gets interesting).
- The second issue is that, in all probability, the whole town is not just trading apple-certificates. I could also issue promises to catch deer, the fisherman could issue promises of fish, and so on. This could get pretty messy, especially if you got the notion to issue more apple-certificates than you can grow: you could buy all kinds of stuff with self-issued debt that you could never repay, and the town wouldn't find out until harvest-time comes. Once again, value has been "destroyed" people worked and made stuff and gave you stuff in exchange for something that doesn't exist, and will never exist. All that stuff they made is gone, you consumed it, and there is nothing to show for it.
The above two concerns are likely to become manifest in our village sooner or later, and probably sooner. This leads to the question of credit, which is, at its most basic, a measure of credibility. Every time you issue an apple-certificate, you are borrowing, with a promise to repay from future apple-harvests.
After the first couple of town scandals, people will start taking a closer look at the credibility of the issuer. Let's say the town potato-farmer comes up with a scheme where his potato-certificates are actually issued by some credible third-party, say the town priest or whatever, who starts every growing season with a book of numbered certificates equal to the typical crop-yield and no more, and keeps half of the certificate on file, issuing the other half. Now there is an audit trail and a very credible system that is likely to earn the potato-grower a lot of credit, compared to other farmers in town. That means that the potato-grower can probably issue more notes at a better exchange rate than some murkier system. Similarly, the town drunk probably won't get much value for his certificates promising a ship of gold.
Now we have something like a credit market emerging, and the potato-farmer is issuing something closer to what we might call a modern "bond"...
You should really read all of it.
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