paimei01 we have had some very mean-spirited dog fights on peak oil dot com over this
debt as money issue. For background read MonteQuest's
Our Money System and Oil Depletion; Are they Compatible? and jato's
Economic Growth with Declining Energy?
Basically, the argument that our current economic system 'requires' endless growth because money supply is equal to P / P + I (where P = principle and I = interest) is a red herring.
As Bas mentioned, the supply of money is created by the government's agent. Either The Mint or the Treasury or whomever else is charged by the government to print notes or mint coins.
Yes, it is created out of thin air - using linen, ink and metal alloys that is - but money represents a call on ALL the assets of the government of whatever country is issuing its own currency. A practice called sovereignage. It is literally only worth as much as all the assets of a country less all its liabilities. Some say that is less than the value of a single asset, like physical gold, but I beg to disagree.
But then that is no different than a stock, bond or land title that are also created out of thin air, but also represent a call on real assets of the issuer. Even a gold certificate or shares in a mining company are mere pieces of paper with no worth of their own except as legal proof of a broader claim.
Some have said that credit is money because you can convert credit into cash. This of course is wrong. You can borrow all the money you want, so long as someone is willing to lend to you, but you still have to pay that money back. Even at zero percent interest. The principle has to be paid back out of future earnings (or assets sales for example). It is hardly free then is it?
That money has to be re-paid in the future out of profits, not growth. You can grow sales all you want, but if you are not generating a profit you cannot repay your loans with interest or even the principle for that matter.
A store that borrows money at 6% to buy inventory worth $1000 and sells that inventory at a 20% mark-up can easily afford to pay $60 interest on its $200 profit. The net profit is then of course $140 before other expenses. This requires no growth. The store can do that year in and year out. Of course, the store's shareholders may be unhappy with their return and insist that the store try to grow sales through credit and expansion.
But the value of the business is the present value of $140 (less expenses) times whatever multiple you want to use. If the S&P 500 P/E is say 18 today then the PV of $140 x 18 or $2520. If someone wants to buy the business for 25 or even 36 times earnings then it would be their problem to either try to grow sales or reduce expenses to earn a higher profit to justify the price.
However, I would suggest that the PV of $140 per year in 18-years would not be $2520 because the value of P (as in Principle) itself varies. How? For one, inflation devalues the value of P. Secondly, real growth or efficiency gains can change the value of P relative to the store's revenues. They can increase or fall. Thirdly, competition can lower revenues or margins. And a new competing business model (like a bigger store nearby) may even make the store redundant or unprofitable. So a store does not need growth to survive, but it may need growth to remain profitable. Then again it may just need a better business model, too.
The fact that money supply has to grow to pay for goods and services in the real economy is also misleading. Of course it has to in an expanding economy. Just like if you pay for your goods in gold you need to have gold in the first place. Therefore, it has to be mined out of the ground to be put into circulation. It is like saying there would be no bread without grain. Well, no shit, Dick Tracey! Of course, if the real economy contracts, say due to a scarcity of energy, then the money supply will contract as well. Less money will be needed to pay for goods and services. If money supply does not contract then it is inflationary. The same amount of money chasing a shrinking economic pie.
But would that not happen with gold as well? It would take more ounces of gold to buy a barrel of oil if demand stayed the same while supply shrank, right? So we see that no commodity, no currency, no asset (physical or financial) has an absolute value. They all fluctuate vis a vie one another in response to relative supply and demand. You could argue that the fundamentals favor oil for energy over gold as a means of payment, so I would expect petroleum to become more expensive relative to gold as well. Just because it has not happened for the past 6000 years, as gold bugs like to point out, means little prior to peak oil, but post peak oil depletion may change that equation.
However, even post peak oil it will be profits and not growth that pay for goods and services as well as profits needed to repay the principle and interest on loans. Therefore, credit is not unlimited, but limited by a borrower's ability to generate a profitable return on that capital. If the borrower cannot repay then it is the lender that is stuck with a loss. They are unlikely to continue to lend at a loss because they have to pay for their capital as well. And so it goes.
The organized state is a wonderful invention whereby everyone can live at someone else's expense.