Tyler Cowen, as he is often capable of doing, raises questions about the fundamental
theory underlying the so-called break down in markets that explains the current "crisis".
But since Tyler is a habitual contrarian (and this is a great skill to possess), he tends to underestimate the side that might have the answer and overestimate the side that has the critique. This is good for discussion and it does force those who believe they have found the answer to work harder (always a good thing). However, I would argue that the economic theory criticisms in this instance are misplaced and thus the exercise ultimately leads to a confusion among interested laymen when theory is employed to address questions of public policy relevance. The simple reason, the socialist calculation argument has nothing to do with general equilibrium economics.
In fact, this has been a problem with Tyler's analysis of the financial crisis throughout. Under conditions that would result in a general competitive equilibrium, the disturbances of monetary and credit expansion would be non-existent. In fact in Tyler's Risk and Business Cycles book, which makes an outstanding contribution to the Austrian literature by demonstrating the sensitivity of traditional Austrian results to assumptions, makes this contribution by tweaking the assumptions in the model to such an extent that the Austrian type conclusions do not make sense. But of course they don't make sense if you assume rational expectations and perfect capital markets. So from an "economic model" point of view, the sort of "cluster of errors" that result when distortions in a nominal variable (money) lead to distortions in the real variables (the pattern of exchange and production). Such distortions do not occur in a world of rational expectations and perfect capital markets by definition.
But this is not new to the Austrians, Mises in fact wrote an article in Economica (1943) on "elastic expectations", and while he did talk about Lincoln's law (you can fool some of the people some of the time, you cannot fool all of the people all of the time) and thus was not ignorant of the basic intuition of money illusion, it didn't follow in Mises's framework that one must go the whole way to say people can never be fooled.
If one buys into Cowen's rendering of these issues, the Austrian presentation is just an earlier and immature presentation of the theory of the business cycle and when updated to be consistent with modern theory can no longer be sustained and rightfully should be discarded. All that is left is non-economic explanations such as psychological delusion --- e.g., irrational expectations, herding behavior, and collective pessimism, etc.
The Austrian understanding of monetary theory and the market process represents an alternative to this view. As I have tried to point out several times (unsuccessfully), the Austrians represent a unique position in economics because they begin with a full embracing of the heterodox problem situation, but through analysis result in more or less traditional conclusions about complex interconnections and social cooperation under the division of labor. To most economic thinkers, the conclusions can ONLY follow if the orthodox assumptions hold. Deviations from those assumptions, result in deviations from the conclusions.
But Mises pointed out that the mechanical interpretation of the quantity theory was flawed, but he didn't accept the conclusions of monetary cranks and instead argued for a process oriented understanding of the quantity theory. Similarly, Hayek rejected perfect competition, yet he didn't reject the important role that competitive market process plays in the discovery, communication, and use of knowledge. And both Mises and Hayek did not make the socialist calculation argument based on equilibrium prices, it was in fact disequilibrium prices that are doing the job of enabling economic calculation and producing complex coordination of economic activity. In fact, if you read the pages around 99-101 in Socialism closely, you can see Mises's arguing that the monetary price system does this with prices serving three unique functions --- an ex ante function, an ex post function, and a discovery function. None of these functions matter if prices perfectly reflect opportunity costs and production is at the minimum point on the average cost curve at every point in time. Nope, as Mises put it clearly, the problems with socialism are problems of dynamics, not statics. As Hayek put it, the only economic problems society confronts are problems of change. Advanced economics is about adaptations to changing conditions.
In the first issue of the Review of Austrian Economics that I edited, there was a paper by Leland Yeager entitled "Should Austrians Score General Equilibrium Theory?" Yeager chided the Austrians for their abusive language toward the great contribution of General Equilibrium Theory to economic knowledge. Yeager had a point and it is an important point. But ultimately, his argument rests on economists understanding complex interconnections and interdependencies. What happens to the price of copper in NY when a revolution in Chile takes place? Or, how is it that the common woolen coat ends up on the back of the day laborer? Or, who really does know how to make a pencil?
The real question is not whether or not this point about complex interconnectedness is a vital to economic understanding, but whether the formal model of general competitive equilibrium is the only way (let alone the best way) to maket his point. If it was, then we would need to live by those assumptions and die by those assumptions. But this is precisely the argument that the Austrians have challenged from day 1 and Menger's objections to Walras's presentation. They might have been talking about something similar but they did so differently and the differences matter far beyond style of presentation. Mises and Hayek were wrong in their assessment at times when they claimed that the differences were only differences in style not substance.
So the sort of gross substitutability and stability questions that Tyler discusses ARE important questions inside of the equilbrium model. And Fisher's challenge is real --- what faith can we have in the general equlibrium conclusions unless we understand the disequilbrium processes that produce the equilibrium results. Fisher's book (and Presidential Address to the Econometric Society) is huge. But the answer is not in the formal theorizing that he engaged in. The Davidson critique of gross substitutability is an important critique of the formal model and the orthodox problem situation. But again, the conclusion that market order is not sustainable doesn't follow. In both instances, the "solution" is to be found in the literary economics of the Austrian school. The "appreciative theory" of the entrepreneurial market process outdistanaces the "formal theory" of equilibrium economics and its critique by heterodox economists.
Heterodox problem situation, but orthodox conclusions about social cooperation under the division of labor. Lets assess the Austrians on their own terms.