Thanks for you response.
To answer your question requires some digression.
The time preference theory is exactly what Eugen von Böhm Bawerk came
up with, but afther long thought he rejected it.
Ludwig von Mises believed nevertheless, that the time theory of
interest as put forward by Bawerk was the solution to both questions
about interest. The reason why Ludwig von Mises thought that Eugen von
Böhm Bawerk did not see this, was because Eugen von Böhm Bawerk did
not have the concept of Human Action that is the cornerstone of Ludwig
von Mises’ vision.
In particular there is the problem of ‘length of production lines’.
Mises thought that Eugen von Böhm Bawerk became confused, because
Bawerk thought he had to consider the whole ‘length of time’ for any
capital good to even exist. So all of history, from the stone age,
should be part of the production lines leading to the present wealth,
if you wanted to have a sound theory of interest. Von Mises identified
this as a mistake, because the concept of Human Action assumes
(correctly) that, economically speaking, only the future is important.
History does not play a part in economy, economically speaking. This
is, because human action takes the present as a given, and considers
it as less satisfactory than something imagined into the future. Human
action is then the means that transforms the present (less
satisfactory) condition into the more satisfactory condition in the
future.
The only distinction that is important in Misean analysis is that
between goods and land. A good is ‘something that disappears in time,
even if not used’, while ‘land’ is something that MIGHT be the result
of actions of the present, but do not disappear when no action is
taken. So ‘land’ becomes a technical term. This insight solved the
problem of Bawerk, Mises believed. And, indeed, it is a significant
breakthrough.
Human action, at any moment in time, is driven by the difference
between the less satisfactory condition of the present and the more
satisfactory condition imagined in the future. When that last
condition has been become an actuality, the aim of the action has been
reached.
This means, that you do not have to consider all of history, as Eugen
von Böhm Bawerk believed. And therefore von Mises had thought that he
had given a single justification for time preference, and therefore
for interest, which was fully convincing. While Eugen von Böhm Bawerk
needed three, none of which were fully convincing.
The problem with the time preference theory is this: It states, that
any good or service in the present has a greater value than that same
good or service in the future. Therefore, if you exchange a present
good against a future good in monetary terms, you must be compensated
for this difference in value. This difference in value, expressed in
monetary terms, IS interest.
This theory is the consequence from the ‘subjective evaluation theory
of value’, worked out through the marginal utility theory of value.
The problem is, that the marginal utility theory of value is simply
wrong. Why? Because it is based on three things. Utility, scarcity,
and subjective evaluation.
I think that utility and value have nothing whatsoever to do with each
other. Value is a totally different phenomenon than Ludwig von Mises
thought it was. In that sense I am not a Misean.
To be frank, I have a completely new theory of value, which I consider
to be the next step in the Austrian theory of value. I have succeeded
to derive the concept of value DIRECTLY from the concept of Human
Action in a way, that even leads to a Cardinal Measure of value.
My own theory of value has one thing in common with Ludwig von Mises’
theory of value, though. In that sense I ‘stand on his shoulders’.
Both his concept of value and mine are dependent on the individual.
The difference is that he makes it dependent on the valuation of the
individual, while I make it only dependent on the action of the
individual. (Action as defined by von Mises: ‘Human action is
purposeful behavior.’) I think the step I have made might cause such a
deepening of Austrian economics, that nobody is able to ignore it any
more.
It is my opinion, that the very fact that value is based on subjective
evaluation is the very reason why Austrian economics is not
mainstream. As I said, I am writing it all down now in my own book, so
I am not going to explain it here. I just point at some problems that
might convince you that the Austrian theory of economic value just
‘does not cut it’.
To summarize, the Austrian theory of economic value assumes, that
value is the result of three things: utility, scarcity and subjective
evaluation. It is related to ‘action’, in the sense ‘that we prefer to
have the results of our actions as soon as possible’. It then leads to
the concept of ‘time preference’, which is identical with the concept
of interest, when connected to money.
What is the problem with this? It is that scarcity is a very important
part of the Austrian theory of value.
And that is exactly why I reject it. Why? Because if scarcity is part
of a theory of value, then the same objection can be raised against it
that can be raised against the Marxian theory of value. It ‘assumes
that the goods and services are already there’, and therefore it
implies that THE definition of economy in its full generality is:
“Economy is the science that studies the distribution of scarce means
among competing ends”.
This is the definition accepted by Rothbard. I consider it strange,
that nobody within the von Mises community has pointed out, that this
definition is in essence socialist.
The problem with this definition is that it leaves production out of
the picture. Why? Because production is a particular kind of human
action. A kind of human action that has as its result the diminishing
of scarcity. And that very fact shows, that economy has to be more
than just ‘the DISTRIBUTION of scarce means among competing ends’.
Reisman’s definition is better. He defines economy as the science that
studies the production of wealth under a system of division of labor.
I almost agree with this definition. I would only like to replace the
word: ‘production’ with ‘creation’. This is because I do not believe
in the belief, that human action is not creative, because it ‘just
rearranges the elements of nature’. A rearrangement can lead to actual
creation in the sense that you can have a combination of elements,
that unites into a whole, that does the exact opposite of its
components. Just consider water. It consists of two gases, one highly
explosive, hydrogen, and the other is a catalyzer of fire. But, both
combined lead to water, which can be used to extinguish fire. If water
was ‘just a rearrangement of hydrogen and oxygen’, and you knew that
hydrogen is an explosive gas, while oxygen is a catalyzer of fire,
then you would shrudder by the suggestion, that you must use water to
extinguish fire.
The fact is, that the ‘mere rearrangement’ of hydrogen and oxygen, two
gases, leads to a liquid having properties that cannot be explained by
just considering hydrogen and oxygen. This is because the properties
of water are the result of the interaction between hydrogen and
oxygen. Therefore, the term ‘mere rearrangement’ is a huge misnomer.
Arrangement can lead to a whole having properties that is not present
in any of its components, and which might not even have existed
before. Therefore human action can lead, through rearrangements to
creation. And that is why I want to replace ‘production of wealth’
with ‘creation of wealth’ in Reisman’s definition.
That this is very important can be seen by an article that appeared on
this very website a short while ago. Somebody defended that file
sharing (torrent websites) should be made completely legal, and that
all products in the form of information, should have no price
attached, because they were not scarce.
There has to be something very wrong about this, because movies,
music, computer programs etc. are all definitely forms of wealth,
created through human action. And therefore, in a completely honest
economy, the makers should be paid for making them. The very fact,
that file sharing websites were defended through using a scarcity
argument on this very website shows to me, that the value theory of
von Mises ‘just is not it’. And therefore, despite the genius of von
Mises, this part of his theory is the archilles heel, and this is why
it fails to convince the rest of the economic world.
Mind you, I consider the von Mises economic theory the best of all of
the known economic theories there is. But it is just not good enough
to really solve ‘the big problems’ we now have in our society. To give
just one example, even the simple fact that making more money leads to
a decrease in value of the monetary unit cannot be PROVED by the
Misean economy theory, simply because value is based on ‘subjective
evaluation’. The concept of ‘subjective evaluation’ is just too weak
to prove this statement. A really convincing economic theory of value
should be able to PROVE this statement, which we all know to be true.
My point is, we know it (except when we are Keynesians), but it does
not FOLLOW FROM Misean economics.
Or, to give a concrete example, if you assert that increasing the
amount of money in circulation will cause a devaluation of the
monetary unit, then a Keynesian could object, by stating that
increases of the money supply wil STIMULATE more people to ‘get the
extra money’, hence stimulate production, and, therefore, by the very
fact that value is the result of subjective evaluation, will do the
exact opposite. It will INCREASE the value of money. This means, that
you can use Misean economics to defend Keynes! And this just because
‘subjective evaluation’ is one of the components of the value theory
of Misean economics.
One of the the two words ‘time preference’ is ‘preference’, hence
‘subjective evaluation’. And therefore it is NOT a justification of
interest. At most it is a different way to describe interest. It is a
pseudo-explanation for the justification of the following sort: ‘Why
does John drink milk? Because he is a Milk Drinker.’ It is a question
reformulated as an answer.
And that is why ‘time preference’ is no justification for interest.