===== PAGE 1 ===== Vol I» NO Z | Austrian Economics Newsletter Viewpoints on the ‘“New”’ Austrian Monetary Economics by Peter Lewin Dramatis Personae | pathizer | DICK: a graduate student in economics, basically a (mod- | ern) Keynesian | HARRY: a graduate student in economics, a believer in an obscure set of doctrines known an “Austrian” or “Subjec- tivist” economics, im-economics, a Monetarist sym- { The action takes place on the campus of a respected Mid- western university. | Nummary of the Main Ideas Scenei — Prologue Scene ii — Methodology Scene iii — Summary of the Main Ideas 3 ) Scene iv — Point-Counterpoint Student editors Sven Thommesen and Mark Thornton laok over the Scene v — Criticisms and Extensions shoulder of Professor Leland B. Yeager. Scene vi — Epilogue RT . Scenei — Prologue. implicit contracts that appear eX post to be inconsistent with RE do exist. ench on the laym in fromof | {Harry approaches from the library steps] the library. The date is early ab TOM: Here’s Harry. Let’s see what he thinks. TOM: Well, Dick are you getting the hang of this Rational DICK: Tom, you know that Harry is a little weird. He a 0. Expectations (RE) theory? thinks all chis stuff is fundamentally flawed. Before you : DICK: Yes, I think so. I must say some of the ideas are very know it we'll be into some deep philosophical debate about compelling and the techniques used are quite impressive. | methodology. still believe though that RE is consistent with a case for HARRY: Hi guys! I just received a copy of this great new discretionary policy. Differences in information and insti- book by O'Driscoll and Rizzo (O-R).! tutional rigidities—like implicit contracts—suggest that TOM and DICK: Who? the government can still help avoid the social costs of HARRY: They're two young economists who write on unemployment. modern Austrian economics and they've produced this TOM: Really Dick! I don’t know how you can say that. really interesting book; I think you should both read it. It is Haven't you read Barro’s empirical work or his work on a fundamental challenge to most of mainstream economics. , contract formation under RE? DICK: Come on Harry! How are you every going to get Nae?) [CK: Sure, but his and all of the other empirical evidence your Ph.D.? You need to be concentrating on the impor- presented in favor of the invariance postulate is highly tant stuff. Tom and I were just discussing RE. ambiguous to say the least. And whether we like it or not, HARRY: Don’t worry Dick, I'll get my degree. Actually in ===== PAGE 2 ===== chapter 9 of this book O-R discuss aspects of RE. economists don’t really take the falsification criterion seri- DICK: I can imagine. ously. Their rhetoric is different from their practice. The 13 HARRY: You've dismissed their arguments even before practice is to decide between theories or models on the 3 you know what they are. Talk about keeping an open basis of their intuitive appeal and mathematical cleganceqgy mind! If you read the Mises chapter 1 put on the reading list, ®] [| TOM: OK, OK, let’s not get excited. What do they say, you know that, for Austrians, the soundness of a theory is § Harry? not an “empirical” matter, but rather a matter of logic. 3 HARRY: Well, its very difficult for me to explain unless TOM: Yes, I did eventually understand the notion that 3 you are willing to let me fill in some background on Aus- theory and history yield different types of knowledge and : trian economics. That could take awhile. that knowledge in social science theory is 'a priori’ in na- DICK: Here we go. - ture—although apparently not all Austrians agree com- g TOM: Look, I've got a proposition to make. We have a pletely on this, [ also understand that praxeology implies $ mid-term break coming up in a couple of weeks. Why both subjectivism and methodological individualism. But don’t you prepare a reading list for Dick and me on Aus- having come this far it seems to me we have reached an § trian economics and we'll try to acquire some of the neces- impasse. Mainstream economists simply do not feel bound : sary background? by the principles that Austrians consider inviolable.’ DICK: Come on Tom. Do you really think that’ $ an of Rather as you know they consider the realism of the as- cient use of our time? -sumptions—including | suppose assumptions: SEN Sn TOM: It may provide a fresh perspective on things Dick. quisition of knowledge or the formation of expectations — And Harry's right. We do need to keep an open mind. to be beside the point. What matters is whether or not the Now, if that's agreed we'll meet after the mid-term break theory “works” in providing useful predictions. for a discussion. HARRY: Yes, but how are we to know if the theory HARRY: Great idea! Let me suggest that to keep it fo- “works” when, as I've said already, most (if not all) hypoth- cused, we concentrate on chapter 9 of O-R. You can bor- = eses are effectively insulated from refutation.* row my copy (though I really recommend you buy your DICK: It is clear by the amount of space that they devote own). I think you should read the whole book, but since ro methodological issues, that O-R are sensitive to these you're both interested in monetary economics let's focus questions. After exploring at length the meaning and im- on that. Agreed? plications of subjectivism they attempt, I think, to go TOM: Agreed. yond their mentors and offer (in chapter 2 section If enti- DICK: Oh all right. Co tled the Dimensions of Subjectivism) an explicit criterion for deciding between theories. It is worth quoting’ The covering-law model, therefore, does not provide an adequate form of explanation for dynamically subjectivist Scene ii — Methodology [Later that term, in a study room in the basement of the library. | theories. An essential feature of these theories is that logi- TOM: If I'd known what I was getting into, I doubt that I'd cal deducibility of the statement of the relevant decision or have suggested it Harry. That Austrian stuff is rough go- phenomenon is no longer possible. This, of course, does ; ing, especially at first before you catch on to the spirit of it. not mean that explanation is no longer possible but merely It really is quite different from what I'm used to. Fm not that one variety of explanation has been excluded. “Not A sure I know what to think. IEE - deducibility but intelligibility constitutes the BESET } DICK: Actually I was very sleasandy surprised. 1 found of the logic" of explanation.” . .. One clear and useful much of the discussion very refreshing, especially the em- meaning we can attach to the intelligibility relationship is i phasis on the importance of expectations—that's very that the choice-theoretic explanatory schema must render [4 Keynesian. [ didn't like the policy implications though. the given phenomenon more likely than if the particular \ Those seem very Monetarist. model had not been presented. * TOM: Yes, perhaps that’s why I'm confused. This intrigued me. Intelligibility itself is surely a subjective ] ; HARRY: I really think it would help if we spent a little category whose content differs across individuals particu- time discussing methodology. larly as they appraise real-world situations corresponding DICK: Uh oh. to proffered theories— business cycles for example. So, in HARRY: You have to understand that from the Austrian the final analysis what makes a theory “work” or which perspective mainstream economic methodology is based = theory “works” best is itself a subjective decision. In that on a view of the world that is very naive. In reality the sense we surely have reached an impasse. i hypotheses that emerge from theorizing in economics are But, since my interest is now aroused, and [ am anxiouggh seldom well formed or capable of decisive refutation. And, to discuss O-R’s monetary economics 1 suggest we bear of course, as was recently pointed out by McCloskey’, their intelligibility criterion in mind and press on. Later we ===== PAGE 3 ===== can decide whether we agree or not that their theory maxi- TOM: Why do you say this is the mote important? At mizes intelligibility, times | was at a loss as to its relevance. TOM: Good idea. But before we leave this there is one HARRY: It has very important implications and it contains 4 other methodological point that’s worth noting. For O-R some ideas that challenge the very heart of neoclassical | A bjecciviom implies methodological dualism, that is, that monetary economics. . the social and natural sciences must be treated differently, TOM: You'd better explain. found this unconvincing. The analysis of cyclical phenom- HARRY: Firstly, there is the basic idea that money, as a ena, for example, would appear to be amenable to math- social institution, was not designed by anyone. Like lan- ematical techniques developed in the natural sciences. guage it simply evolved. But, more important, like lan- HARRY: I don’t think so Tom. My own view of the matter guage it could not have been designed. The analogy with is as follows. It is not subjectivism per se that leads to language is compelling. {page 13}. The use of a language methodological dualism. It is rather that subjectivism in presumes that others understand it. The use of a money human affairs implies disparate expectations. Obviously, instrument presumes that others value it. Money cannot be all (scientific) investigation leads to results that must be legislated. This should give pause to all those who dabble subjectively perceived and interpreted. In what we call the in theories about the optimum money supply or the most hard or natural sciences there is a high probability of efficient monetary rule. Furthermore, money, like lan- | obtaining a consensus on the meaning’ of those individual ~~ guage, is universal. People invariably tend to use them. Ce HATE This 15 DEMREthe connection berween the That is a pattern prediction. The precise form that both individual experience of the “data” and the mental con- take (and we might also include the institution of law) is structs used to organize them for analysis and prediction not predictable. vary little, if at all, across individuals. Thus, there is unani- So, [ think these ideas are important. But actually O-R’s mous agreement that the atomic weight of hydrogen will treatment is both less and more than Menger’s.® They continue to be what it was (acknowledged by all to be) touch rather lightly on the details of the process by which historically. Predictions based upon this belief can be =~ money evolves. Menger’s own treatment is replete with made. Expectations converge. There is a shared experience historical examples. Also, when explaining the benefits of the world and of ideas that is absent in the case of from money that accrue to society, they did not explain as individuals experiencing business cycles for example. clearly as they might have that money facilitates both Ww. Similar considerations apply to objections about the use exchange and production. {See Lewin (1984)]. It does so by of mathematics in economics. These objections should not economizing on information and reducing risk. The latter, be to the use of symbolic representations per se, but rather in particular, is important in facilitating production. Thus, to the interpretation of the symbols as constants—per- when money malfunctions, both production and consump- ceived to be so by all the economic agents. These symbols, tion activities are affected. This provides a link between if they are anything, are necessarily expressions of the the origins of money and the topic of economic fluctua- subjective (disparate) notions in people's minds as to how tions. Of course, this is all there is between the lines, and, the world works or will work. perhaps, that is where it should be given that both Menger [ think this will be important in our later discussion, and and Mises had treated the subject quite fully. I am very 7 gad you both feel that we should continue. DICK: Well, then what is new about O-R’s treatment? wiliskaellshavinseanms. dhisdar why: not? Lsuggest you... HARRY: To some.extent it is a matter of emphasis-but I summarize e the n main ideas i in O-R amr 9 Harry. think there are some new things here. One which I think HARRY: Ok, but why don’t we do this over a beer? It's may be overstated is the idea that the “subjective percep- getting late. tions and market characteristics of goods not their physical attributes” [page 8] are important in determining the course of monetary evolution. I understand this as an at- tempt to strike a blow for subjectivism, but my reading of Scene iii — Summary of the Main Ideas [Later that evening in a favorite student meeting place} HARRY: Well, as O-R tell us, this chapter is organized Menger suggests a close connection between the physical around two major topics: Menger’s theory of the origins of attributes of commodities and the value that people place money and the Mises-Hayek theory of economic fluctua- on them as money qua money. Obviously, these attributes tions. Of the two | think the former is the less well known have no absolute or intrinsic value, but when coupled with but, perhaps, the more important. O-R use it to illustrate place and circumstance they combine to suggest that some the subjectivist approach to analysis and at the same time things make better money than others. I'm thinking of they illuminate two recurring themes—the distinction be- things like durability, divisibility, transportability, ease of cen typical and unique events and the development and identification etc. When put like this, O-R’s point may role of institutions. Also, at the end of the chapter this appear less controversial. What comes to be used as money topic is tied to the question of monetary regimes. is indeed “partly an accident of history” [page 8} but (again ===== PAGE 4 ===== reading Menger) there are striking similarities in the type avoided by the Austrians. of monetary evolution that different societies at the same =~ DICK: So what’s new about O-R’s treatment? stage of development undergo—and this is true even for HARRY: Once again there are new points of emphasis. But societies that develop in isolation of one another. O-R also use a mode of expression that is more contempo Another idea, which is new more in its emphasis than in rary than Mises, Hayek, Rothbard, and others and vod its content, is that all other kinds of social evolution de- may help make it more accessible. [ am thinking of the use pend crucially on monetary evolution [page 9}. This is a of [ and S schedules, present-value formulae and terminol- very important idea that makes nonsense of any attempt to ogy like real interest rates, interest elasticity and so on. This calculate the value to society of money in terms of some allows them to make some graphic points {no pun in- notion of consumer surplus. It illustrates quite clearly that tended) that illustrate differences from received theory. one cannot think about money productively in terms of DICK: For example? | comparative statics. Monetary developments are part of a: HARRY: For example: truly dynamic process. (1) that in any realistic account of fluctuations the nu- TOM: What about the second topic—the theory of fluc- merator of the PV. formula {page 27} will change as a tuations? result of other changes (like changes in r) HARRY: I find this much more difficult to characterize (2) that sunk costs make “bad” projects appear profit- : because I find myself more critical of their treatment than able {page32} : of the first topic. - I 6) d