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Below is an extract from a commentary originally posted at www.speculative-investor.com on
5th November 2006.
We often read about the inflation threat posed by stronger economic growth,
with the word inflation here referring to a rise in the general price level.
Inflation is, of course, a rise in the total supply of money, but for the purposes
of this discussion there's no need to dwell on the importance of getting this
particular definition right. What we'll dwell on today is the absurdity of
the notion that growth causes prices to rise.
Central bankers will regularly refer to something called "the rate of
economic growth consistent with low inflation" as if a higher rate of
real economic growth would be expected to lead to troublesome increases in
the general price level. The implication is that inflation occurs because the
economy, for some unspecified reason, begins to charge ahead at an excessive
speed, and that when this happens it falls upon the central bank to do something
to solve the problem.
Central bankers, however, have an excuse for spreading misinformation because
one of their primary job requirements is to deceive. In order to maintain confidence
in the monetary system the central bank must be vigilant in its efforts to
direct attention away from the true source of the inflation (the central bank
itself) and towards things that don't cast aspersions on the nature of today's
national currencies. In this respect, 'too strong' economic growth is just
a convenient excuse for a general rise in the price level, as are, from time
to time, things such as oil supply shocks, the weather, increased Chinese consumption
of commodities and the wage-hike demands of labour unions.
But what excuse do independent analysts/economists (those whose work is not
funded by the government) have for spreading the lie that growth is somehow
responsible for economy-wide increases in prices? That it is a lie will be
immediately apparent to anyone who asks themselves the simple question: "How
could the production of MORE goods and services possibly do anything other
than put DOWNWARD pressure on the general price level?"
If something doesn't cause the money used within the economy to become worth
less then the production of more 'stuff' will result in LOWER prices for the
'stuff'. Therefore, when more stuff is produced and prices still rise we know,
for certain, that something MUST be causing money to lose its purchasing power
at a fast enough rate to more than offset the positive effects, on the money's
purchasing power, of the real growth. What is happening, in this case, is that
the supply of money is increasing relative to the demand for money.
But couldn't an increase in the "velocity of money" (the rate at
which the same money gets passed from person to person within an economy) cause
the general price level to rise even if the supply of money remained constant?
The answer is no. Even if "velocity" were a useful monetary concept
(it isn't) an increase in the velocity of money would have to be caused by
something; the velocity of money couldn't just increase for no reason. So,
someone who argued that an increase in the velocity of money was causing an
increase in the general price level would then have to explain what was causing
the increase in velocity in the first place.
"Money velocity" is a concept that is meaningless at best and dangerous
at worst. It is potentially dangerous because, like the whole "growth
causes inflation" argument, it helps to conceal the truth about what causes
money to lose purchasing power. If, for example, the economy-wide demand for
money begins to fall then people will be quicker to exchange their money for
the things that money can buy and economists will observe an increase in the
velocity of money. However, the crux of the matter is the reason WHY the demand
for money is falling. The economy-wide demand for money doesn't fall in response
to people becoming more productive; it falls because people expect the money
to be worth less in the future than it is today.
In a growing economy, the ONLY way the general price level can rise over
a long period of time is via an increase in the supply of money. Furthermore,
under the current monetary system it is the central bank that ultimately controls
how much new money is created. That is, the central bank causes inflation.
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