I have been and am still eager to engage Austrians generally and Hayekians in particular in debates over macroeconomic fluctuations.
This is not because I believe – as many have suggested – that Real Business Cycle Theory over even the Chicago emphasis on micro-foundations are Hayekian. They don’t seem to be to me.
Its because in my mind Hayek’s explanation of the business cycle is a beautiful example of a theory whose only vice is that happens not to be true. Its brilliant. Its elegant. Its parsimonious. It possess boundless fecundity. It’s the kind of thing we expect from brilliant minds. It just happens to be wrong.
And, this is a crucial, crucial, crucial point.
The world is not something that makes sense to us. The world is something that is. Its entirely possible for very beautiful sensible things to just be wrong.
For me, I will say, the first instance of this was reading as a child the debate between the Steady State Universe and the Expanding Universe. Obviously, the Steady State Universe is far more beautiful, far more sensible. It lays to rest dozens of meta-physical questions and produces a model of the world in harmony with our spirit as human beings.
Its also wrong.
I remember so badly wanting it to be true and when I grew up wanting to discover that the expansionist had been wrong. That this theory – the theory that deserved to be true – was true.
But, its not true.
This is painful but its real. And, we have to decide at some point whether we want to bask in the joy intellectually fulfilling views of the world, or whether we wish to see the world as it is, warts and all.
Coming back to Hayek let me take these line from his elegant Nobel Prize lecture on the Pretense of Knowledge
The continuous injection of additional amounts of money at points of the economic system where it creates a temporary demand which must cease when the increase of the quantity of money stops or slows down, together with the expectation of a continuing rise of prices, draws labour and other resources into employments which can last only so long as the increase of the quantity of money continues at the same rate – or perhaps even only so long as it continues to accelerate at a given rate. What this policy has produced is not so much a level of employment that could not have been brought about in other ways, as a distribution of employment which cannot be indefinitely maintained and which after some time can be maintained only by a rate of inflation which would rapidly lead to a disorganisation of all economic activity. The fact is that by a mistaken theoretical view we have been led into a precarious position in which we cannot prevent substantial unemployment from re-appearing; not because, as this view is sometimes misrepresented, this unemployment is deliberately brought about as a means to combat inflation, but because it is now bound to occur as a deeply regrettable but inescapable consequence of the mistaken policies of the past as soon as inflation ceases to accelerate.
What he is saying in our modern terms is that mass unemployment is the result of frictional unemployment which in turn result from a distortion of the price system.
This makes a lot sense and in many ways it should be true. But, its not true.
And, we know its not true because when we run the process in reverse we get the reverse result, but Hayek’s frictional analysis would not allow for that. Any distortion in prices should produce frictional unemployment as the economy readjusts.
Yet, in the early 1980s the US Federal Reserve crushed down on the inflation rate, producing immediate unemployment. This is somewhat anomalous from Hayek’s prescription because the initial phase of distortion doesn’t produce contraction. However, let that be.
What really makes the difference is that when the Fed decided to stop, without telling anyone by the way, the economy boomed. Naturally, after such a harsh period of dislocation resources were away from their long run best uses. It should take time to readjust.
However, it took no time. In months the economy was accelerating rapidly and what’s more the inflation did not come back.
Perhaps ironically, I don’t know, we can see why if we sit and pick a part business cycle fluctuations on an industry by industry, even job type by job type level. Resources don’t shift around. New modes of production or ways of satisfying consumer demand are not created at an unusual rate.
Indeed, the rate of creative destruction actually falls during a recession. Fewer jobs are destroyed. Fewer new firms are created.
Most importantly, specific types of production go into hibernation – the building of transportation equipment and the construction of structures. Those workers for the most part move very slowly into other industries, if at all.
And, amazingly when the recession is over they go right back to doing what they were doing before. No change at all. Same cranes, same hammers, same assembly lines. Often the same model lines for the cars and the same blueprints for the buildings.
Its not a shift, it’s a hibernation.
A shift would be more elegant. It would make sense. It should be true.
It just not true, in this world.

30 comments
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Wednesday ~ December 7th, 2011 at 9:49 am
gcallah
“The world is not something that makes sense to us.”
Then you should stop right there. There simply is no way to pile up little chunks of “atomic,” brute facts and ever get any theory of any sort.
Wednesday ~ December 7th, 2011 at 9:50 am
Bob Murphy
Karl, I don’t get what you are saying. I am honestly willing to admit it’s because I “believe in” Hayek’s theory, so I can’t even imagine what the world would look like if it were wrong.
But, I would have thought that the early 1980s recessions were about the best possible vindication of that Hayek quote, except possibly 1920-1921. And yet you are pointing to it as an example of how Hayek was wrong? I really don’t get it.
Wednesday ~ December 7th, 2011 at 10:27 am
Unlearningecon
I don’t understand how they are – they follow a classic demand side recession story. In both cases the FR increased rates and caused a recession, then when they dropped the recession ended quickly.
Wednesday ~ December 7th, 2011 at 12:19 pm
Lord
The loose money preceding the recession is supposed to cause a distortion in employment, time production structure and all that, but the recovery with less inflation showed there was no such distortion. This may in fact prove true in the current situation and while there may be a change in how money will be created, from housing price appreciation to increased exports perhaps, it may not affect where that money is spent.
Wednesday ~ December 7th, 2011 at 10:31 am
Bill Woolsey
I find it difficult to understand the current recession without seeing a need for a reallocation away from housing.
There was an episode of very low interest rates some years ago, and those are plausibly related to the boom in housing.
I also think that if policy, especially monetary policy, were aimed at returning housing construction to full employment, the result would be very bad.
Of course, I don’t think the adjustment process requires less nominal GDP or that lower nominal GDP helps anything.
But I don’t think Hayek did either.
I don’t think the theory comes close to explaining “the” business cycle.
Also, it seems to me that Hayek (and Mises) focus on a single chain of cause and effect, when each step has many consequences and the net result is ambigous.
Really, I think Mises continued to be fixated on an effort to use monetary policy to drive real capital income to zero, so that all income would go to workers. He thought such an effort would be unfeasible in the long run, and would result in disaster if not stopped. And to the degree it worked at all, changes would have to be reversed. It might even look something like a recession.
I don’t think any historical episode fits that scenario really, but lots of episodes involve central banks lowering target interest rates. Surely we can expect that to have an effect similar, if milder, than a crazed attempt to abolish all capital income by expanding the money supply, right?
I think the answer is no. And that the real world recessions have next to nothing to do with Mises’ thought experiment.
Still, targeting unemployment with monetary policy can have very bad effects when structural unemployment rises. If you assume perfectly flexible prices and wages, it is hard to see how any unemployment can be anything but structural.
Mises seemed to stick with this his entire life. Hayek, on the other hand, came to realize that changing nominal expenditure given sticky prices and wages causes its own set of problems. But that still doesn’t mean that using monetary policy to avoid structural unemployment wouldn’t be disastrous. And how is that avoided if you use aggregate demand policy to keep the unemployment rate at 4%?
Wednesday ~ December 7th, 2011 at 12:56 pm
reason
No the need is a reallocation away from Chinese imports to domestic demand (but the Chinese won’t allow to happen). The fall in demand for new houses is a consequence of land being overpriced. The asset price bubble is something different than misallocation of productive resources.
Wednesday ~ December 7th, 2011 at 1:06 pm
Greg Ransom
I don’t think Bill has read Hayek’s _Monetary Theory and the Trade Cycle_ or his _The Pure Theory of Capital_ or his _Profits, Interest and Investment_.
Hayek’s central argument is that money / credit / leverage / near-money asset values expand and contract and that these expansions and contractions can be caused by all sorts of different things, government regulations, exchange rate policies, government spending policies, changing optimism & risk assessments, changing central bank policies, etc.
And that these expansions and contractions would would change the structure of relative prices & real production processes across hetereogeneous flows of inputs to production, importantly across time.
People who haven’t read Hayek or who have only read _Prices and Production_ are fixated on one effort by Hayek to look at one sort of cycle where the structure expands and contracts due to changing central bank policy.
But Hayek identifies other scenarios — such as the 1925 British deflation caused by pathological British gold / pound policies.
.
Wednesday ~ December 7th, 2011 at 10:42 am
Greg Ransom
This reads like the argument of a believer in intelligent design who says “the only thing wrong with Darein’s theory of natural selection is that it is not”, and then who goes on and gives an account of “natural selection” which is not Darwin and is not natural selection …
Wednesday ~ December 7th, 2011 at 4:06 pm
Gepap
Sorry, but its actually the complete reverse. “Intelligent design” is the nice, clear notion while evolution is messy, but explains the actual world.
Saturday ~ December 10th, 2011 at 2:51 pm
Greg Ransom
Ahhh … this has exactly what to do with anything “Gepap”?
Wednesday ~ December 7th, 2011 at 10:45 am
Greg Ransom
This reads like a believer in intelligent design who says, “the only thing wrong with Darwin’s theory of natural selection is that it is not true”, and then gives an account of “Darwin” and natural selection which isn’t Darwin and isn’t natural selection.
Wednesday ~ December 7th, 2011 at 12:00 pm
Lord
The world doesn’t have warts, only deeper beauties.
Wednesday ~ December 7th, 2011 at 12:15 pm
Johnnie Linn
If we run the process in reverse, the resultant employment is cyclical, not frictional. If the Fed pulls on the string, it pulls on all of them at once. Result is layoffs, that can be easily reversed.
Wednesday ~ December 7th, 2011 at 12:16 pm
Donald Pretari
To me, the important line in this quotation is “The continuous injection…”
Wednesday ~ December 7th, 2011 at 12:31 pm
Matt (@MeCampbell30)
Both parsimonious and fecund? That’s quite an achievement.
Perhaps I’m being overly simple, but doesn’t Hayek’s position really just say that inflation (or money supply in his language) should be moderate and appropriate to the economy at any given point in time?
I certainly won’t deny that monetary influences can have large scale immediate effects on the economy (especially considering ricardian equivalence), but it’s a little far fetch to say that’s the predominate cause – especially in the united states.
Wednesday ~ December 7th, 2011 at 12:46 pm
Wonks Anonymous
It’s too bad Bob Murphy’s blog is down, because there was a hilarious back-and-forth a while back where Daniel Kuehn was trying to bring up the empirical observations behind Friedman’s plucking model and “Secret Agent” kept insisting any asymmetry in the time series with booms and busts was logically impossible.
Wednesday ~ December 7th, 2011 at 1:02 pm
reason
Yes,
Karl shouldn’t be cheating and looking at data.-)
Wednesday ~ December 7th, 2011 at 6:24 pm
Alex Godofsky
Please please please PLEASE use “its” and “it’s” properly.
Thursday ~ December 8th, 2011 at 12:39 pm
Gene Callahan
Please, please, please, Alex, make a nuisance of yourself over minor typos in a friggin’ comment at a blog. People will really appreciate it!
Wednesday ~ December 7th, 2011 at 6:28 pm
david
It’s, its, it’s, it’s, aaaargh.
That’s all.
Wednesday ~ December 7th, 2011 at 8:01 pm
Evening Linked and Loaded | Punditocracy
[...] Hayek and Macroeconomics [...]
Thursday ~ December 8th, 2011 at 12:07 pm
Bob Murphy
Let me challenge the entire premise here, then. Are you guys saying the US economy in 1983 was basically the same as in 1978? What the heck are you talking about? Millions of people had different jobs.
So the question is, how similar or different do employment patterns have to be, to count as a strike or a feather for Hayek? I’m willing to hear arguments, but you guys are asserting that you know there was no “restructuring” in the economy as if that’s a plain fact, like saying Reagan was president.
Also, there was another Fed-engineered boom in the mid-1980s. (The base grew faster during the first half of the 80s than during the 1970s.) I can’t speak for all Austrians, but I think many of them would say that set up the 87 crash.
So how is this a refutation of the Hayekian trade cycle theory? Again, I would have thought this would be some of the best evidence in its favor.
Thursday ~ December 8th, 2011 at 3:24 pm
Wonks Anonymous
Doesn’t Sumner always go on about the 1987 crash being a non-event because the Fed handled it properly?
Friday ~ December 9th, 2011 at 7:48 pm
Tel
Of course the economy never changes, that’s why we are all still banking at the local S&L.
Thursday ~ December 8th, 2011 at 3:48 pm
E.D.R.
He should use the private-comment-to-author feature for minor corrections, instead of distracting other readers and embarrassing the author.
…By the way, where is that much-needed feature? It would make the blogosphere a better place, and maybe even upgrade grammar by allowing polite teaching.
Thursday ~ December 8th, 2011 at 3:51 pm
E.D.R.
I misposted the above remark: Its meaning is unclear here because it’s intended as comment on the it’s-vs.-its grammar policing exchange above.
Friday ~ December 9th, 2011 at 8:03 pm
Tel
The current situation with cosmologists is that in order to make their equations balance they need to invent a Dark Matter / Dark Energy combo that represents approx 20 times more mass than everything else in the universe put together. The Dark Matter / Dark Energy theory delivers no testable predictions, other than perhaps the existence of WIMPs and MACHOs which never seem to turn up in a particle accelerator, and theoretically would be passing through the Earth constantly but yet cannot be detected.
I’d be tempted to be a little circumspect on pronouncing the absolute truth based on what is (in cosmological terms) a tiny amount of measurement at a single instant in time, extrapolated out to the farthest reaches of space and time.
Friday ~ December 9th, 2011 at 9:56 pm
Tom
Karl,
Have you read Fred Hoyles book The Black Cloud? Its great!!!
(Just kidding the grammar police – It’s great!!!)
Saturday ~ December 10th, 2011 at 8:15 am
Aman
“This is somewhat anomalous from Hayek’s prescription because the initial phase of distortion doesn’t produce contraction. However, let that be.”
Are you serious ?
The intial distortion produced less unemployment, the ending of that distortion resulted in more unemployment as resources are rearranged.
I am however delighted that Karl Smith is stille engaging the Austrians and as far as I can see attempting to read “Human Action”.
Saturday ~ December 10th, 2011 at 8:36 am
Aman
“This is not because I believe – as many have suggested – that Real Business Cycle Theory over even the Chicago emphasis on micro-foundations are Hayekian. They don’t seem to be to me.”
No, their formulation and expression in the Chicago literature is not particularly Hayekian/Austrian.
But their origins and inspiration are simply taken from Austrian sources. Austrian had already been making the point before Keynes entered the scene AGAINST the Chicago school in the 1920s, against Irving Fisher and the aggregate approach.
Furthermore the Real Business Cycle Theory emphasizes changes in the market process and these are what Hayek called “the mechanics of change”, the fundamental way in which progress is made in a market economy. RBCTs problem is one of discarding mistakes and failure as an integral part of entrepreneurship that can be exacerbated to great highs.
Robert Lucas himself stated that it is taking the Austrian starting point in terms of what the problem is, that is important but that one can discard Hayek/Austrian methodology. This rejection of the method is in my opinion the achilles heel of the Chicagoans.