To the original question: inflation is simply the expansion of the supply of money. What is money? That which attempts to be used to trade with any other good.
FRB is inflationary and deal with demand deposits. Demand deposits usually trade as money, because people assume that the bank has the underlying money. Thus, FRB is one of two things. Either the bank lends out the underlying money, thus unable to fulfill 100% of its demand deposit claims, or it increases the amount of demand deposits/claims without increasing the underlying money. Obviously, this is an increase in the money supply, inflation, and will result in price inflation.
If on the other hand depositors loan the bank money for a specified period of time, and the bank loans the money out, this is not inflationary. The risk and constraints prevent such debt from being traded as money.
The large problem of FRB is fraud. FRB is fraudulent, as depositors find when a bank practicing FRB goes bankrupt and their claims are made simply invalid. Fraud is not preferred by the market, but the market will not act against a bank if it has not discovered the fraud. Under free banking, banks were constrained against practicing FRB, although many did to limited degrees. It is only through government intervention that FRB can be widely and openly practiced.
FRB will fail. If the government doesn’t prosecute this action as fraud (which it often does not as such practices are often used to pay for major government events like war), it will grow and become a bigger problem. Thus, government faces a change - it can yield back power to the market and prosecute fraud, or it can invent some scheme to prevent FRB from being a problem.
One scheme is central banking, or forcing the banks to cartelize. This makes FRB that much more easily practiced, and causes a much larger problem. In other words, as FRB would cause one bank to fail and leave massive fall-out, central banking could similarly fail, leaving a much more massive fall-out. Yet…there is another scheme…yet again involving more state power and less market power.
This is fiat currency, which basically means that government debt, rather than free market money (such as gold or silver…but not necessarily any one thing, only what the market chooses) is the new base money. Thus, in the case of a bank failures, depositors don’t get screwed - the entire public does. The depositors are paid simply by increasing public debt and thus the money supply. This is double taxation upon the general public - once because their money is devalued and twice because their taxes collected will be used to pay down that debt.
Why didn’t people reject this system, as it is based upon protecting fraud? Because it was made illegal to do so. Americans were forbidden from owning gold, and national commercial banks were not allowed to exist outside the federal reserve system.
These days, Americans can own gold, but it is still pretty much illegal, from a banking perspective. E-gold is the best example of a true bank that does not practice FRB, and the American government has tried to put them out of business. Why not use gold or silver currency outside of banks? Several legal reasons: capital gains taxes, legal tender law, sales tax, prohibition of private minting. But a main reason is simply the inconvenience of not being allowed to commercially bank through such mediums. The government will most likely not honor any contracts made in alternative currencies, such as gold, given Fed money is the only “legal tender”.
As for consumption of money, consider Fed money - it gets torn up and eventually destroyed, simply because it is used as money. Thus, it would be consumed in its use as money. The problem is its very easy to create new money. And given the Federal Reserve System, there is even less requirement, as most money is in the form of accounts, probably electronic, rather than paper. Similarly, gold and silver have many consumer uses in everything from computer chips and photography to jewelry.
But gold and silver, as heavy metals, are elemental. They are very, very rarely converted into a different element. When they are mined, it is doubtful they are 100% pure. This means that gold put to consumer use can be used as money in that form, or melted down, purified, and used as money. If deflation ever became a serious problem, more people would be likely to use their consumption gold as money, adding to the money supply. Only the supernova of a dying star can create gold (at least in a cost-effective manner), so the entire increase of their supply comes from mining operations. Mining is costly, and entrepreneurs can estimate the rate of expansion. Similarly, as the population grows, demand and supply grow, thus money growth is needed to keep prices stable. All of these things mean that rare metals find a unique niche satisfying desired qualities of money.
Confuse a cat, for modern-day bank runs, look what happened to IndyMac. When a bank can’t pay its obligations, it goes bankrupt. Why didn’t it simply print more money? Because it couldn’t - they would be prosecuted for counterfeit. Only the Treasury can create the paper aspect of paper money. Banks expand money by expanding its accounts through loans. Only the cartel, as a whole, can create new money, through the FOMC, by monetizing debt. Commercial banks can only LEND out up to 90% of their reserves. This doesn’t provide them short-term liquidity to meet debts - it does the opposite. In this sitution a bank must borrow from another bank and if they can’t, they may go bankrupt. The cartel attempts to prevent bank failures by creating new money and lending it to failing institutions, thereby allowing them to pay their debts in debased money. If they go bankrupt, all its deposits are virtually null and void. Thus, you could see why a bank run would still happen. Either you go redeem your bank account before the bank goes bankrupt, or you have to wait for an unspecified period of time for the FDIC to repay you. The FDIC doesn’t cover deposit amounts over $100,000, although they claim there are ways to insure over that amount. Of course, there is always the possibility that the FDIC could go bankrupt as well…
Now, there is another possibility, which would likely happen if the FDIC busts, which I think is inevitable. That is, there will be a bank run on the central bank - basically the entire system will be abandoned. This will not happen as simply as everyone going to the bank and demanding gold. That simply can’t happen. Rather, the abandonment will be in the market. Everyone will simply be trying to sell their government money for market money. The result will be that the price of market money will become higher and higher in terms of government money. This is virtually the same as a bank run; the actual value of government money will collapse very quickly.