Money (That's What I
Want)
The best things in life
are free
But you can keep them for the birds and bees
Now give me money, (That's what I want)
That's what I want
But what is money?
Webster defines money as
“something generally accepted as a medium
of exchange, a measure of value, or a means of payment.” To prevent the need to barter, which requires that I
have a good that I can exchange for your good, people have historically accepted
gold as a medium of exchange. The
problem with gold as medium of exchange,
is that is bulky and heavy. Paper money
began when that gold was stored somewhere and a paper note that represented
that gold was used as the medium of exchange.
A problem with this is that it required trust that the paper note was true. The paper US Dollar might say “In God we
trust”, but in fact we trust that the paper dollar is not a counterfeit and
does represent something of value.
In addition to trusting
that a note is something of value, in order for an economy to grow that medium has
to also grow. Gold can not grow. The frenzy
around gold rushes is because the amount of gold on earth is fixed and can not
be increased. This is also true with one
of most successful digital currencies, Bitcoin.
There is a limit to the number of Bitcoins that can be created, 21
million, and when all Bitcoins have been created, it can not be grown.
To accommodate growth
banks lend the money which is deposited with them. However, if that money is lent, then it can
not be immediately returned to their depositors. That is why historically there were runs on banks. The creation of a national bank was a way to spread
that problem among the entire nation and not just a few banks.
A popular idea in economics
in Modern Monetary Theory, is that the state can create money by increasing the
supply of money. This is hardly
modern. William Jennings Bryan campaigned for silver coinage to increase the supply of money so that “mankind would not be
crucified on a cross of gold”. The Weimar republic printed, increased the
supply of, money so fast that a loaf of
bread in Berlin that cost around 160 Marks at the end of 1922 cost
200,000,000,000 Marks by late 1923. Increasing
the supply of money works only if we can trust those creating money. They are not really printing money. They are
increasing the medium of exchange. Printing
money that exceeds the need for that medium of exchange creates hyperinflation.
The rapid inflation in the
1970s, and the continuous low, but pervasive, inflation of today can arguably be tied
to one event, the Nixon Shock of 1971. Before
that event, international trade used the US Dollar backed by gold as its
medium of exchange. When it was no longer
backed by gold there was a surplus of international dollars but no comparable
increase in the existing supply of goods.
The initial shock resulted in the rapid US inflation in the late 1970s. The continued growth of the global economy, without
increasing the US money supply to consider this growth, has arguably resulted in today’s
low but persistent inflation.
When I was a young engineer,
I was given advice by an older colleague that a good rule of thumb is that growth
should be considered to be 2% per year.
Inflation has been averaging about 2% per year. A coincidence? I would suggest not. Should the supply of money be increased, as
Modern Monetary Theory suggests? In my opinion yes, but heeding that old
advice, it should be limited to about 2% per year.