I have given thought to this and I can’t find any a priori demonstration that fractional reserve banking is bad. Sure, it multiplies money in the economy and may create inflation, but it might very well be equilibrated with the investment-spending-saving behaviors of the people.
I usually check any issue by asking if it violates some hardcore axiomatic principle, but I can’t think of any principle violated by fractional reserve banking.
People who deposit money in a bank already know the money will be used for loans. If they had a problem with that they would put the money in a safe box instead. So there is no moral problem involved.
Then there is the inflationary issue.
Some guy deposits money in the bank, the bank will pay a fee to the first guy (being a intermediary) and could lend all the money at a higher fee to someone else. The second guy uses it to buy a new car for his taxi company. The car dealer will pay for his expenses (including buying more cars) and deposit the rest of the money. The car manufacturer, at his time, will pay his expenses and deposit the surplus. The same will happen with every other person who becomes and indirect receiver of the loan. Most of the money will be flowing through the market, only a small part will be saved. An equilibrium will be achieved sooner or later. The bank (if it expects to recover the money) can only lend to people with guarantees and projects that have a sound plan, which are scarce. The surplus of money in any economy is scarce too. The lending doesn’t go on ad infinitum, it will stop at a point that depends on the current situation of the economy.
The only problem could occur when someone doesn’t really want to loan the money, but just it keep there to facilitate the handling of money by issuing checks instead of having to carry (for example) gold or silver with him all the time. Then he agrees to pay a fee to the bank, and expects to be able to withdraw the money at anytime. If the bank makes loans using that money then the banker really is committing fraud. Otherwise, he is not.
The issue really comes down to sound banking practices. Fractional reserve, as based in fixed term deposits, isn’t immoral at all. The danger for any person making a deposit would be the same as if he was lending it directly to some friend. His friend’s project may fail and he may have to execute the guarantee, maybe will lose his money, maybe will have to go to a trial to recover something.
Actually, informal loans could be considered banking operations with a zero-reserve.
So, what’s the problem? What am I missing here? Why is everybody against it?